OrganismsChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and Processes
Quaternary Ammonium CompoundsBenzalkonium CompoundsDisinfectantsIodine CompoundsCetylpyridiniumCetrimonium CompoundsAnti-Infective Agents, LocalGlutaralTrimethyl Ammonium CompoundsAmmonium CompoundsDrug Resistance, BacterialMicrobial Sensitivity TestsStaphylococcusDrug Resistance, MicrobialAnti-Bacterial AgentsStaphylococcus aureusBacterial ProteinsChlorhexidineProtein Structure, QuaternaryCholineAmmonium SulfateBromidesAmmonium Chloride
Quaternary Ammonium Compounds
Derivatives of ammonium compounds, NH4+ Y-, in which all four of the hydrogens bonded to nitrogen have been replaced with hydrocarbyl groups. These are distinguished from IMINES which are RN=CR2.
Benzalkonium Compounds
A mixture of alkylbenzyldimethylammonium compounds. It is a bactericidal quaternary ammonium detergent used topically in medicaments, deodorants, mouthwashes, as a surgical antiseptic, and as a as preservative and emulsifier in drugs and cosmetics.
Disinfectants
Substances used on inanimate objects that destroy harmful microorganisms or inhibit their activity. Disinfectants are classed as complete, destroying SPORES as well as vegetative forms of microorganisms, or incomplete, destroying only vegetative forms of the organisms. They are distinguished from ANTISEPTICS, which are local anti-infective agents used on humans and other animals. (From Hawley's Condensed Chemical Dictionary, 11th ed)
Iodine Compounds
Inorganic compounds that contain iodine as an integral part of the molecule.
Cetylpyridinium
Cationic bactericidal surfactant used as a topical antiseptic for skin, wounds, mucous membranes, instruments, etc.; and also as a component in mouthwash and lozenges.
Cetrimonium Compounds
Cetyltrimethylammonium compounds that have cationic detergent, antiseptic, and disinfectant activities. They are used in pharmaceuticals, foods, and cosmetics as preservatives; on skin, mucous membranes, etc., as antiseptics or cleansers, and also as emulsifiers. These compounds are toxic when used orally due to neuromuscular blockade.
Anti-Infective Agents, Local
Substances used on humans and other animals that destroy harmful microorganisms or inhibit their activity. They are distinguished from DISINFECTANTS, which are used on inanimate objects.
Glutaral
One of the protein CROSS-LINKING REAGENTS that is used as a disinfectant for sterilization of heat-sensitive equipment and as a laboratory reagent, especially as a fixative.
Trimethyl Ammonium Compounds
QUATERNARY AMMONIUM COMPOUNDS containing three methyl groups, having the general formula of (CH3)3N+R.
Ammonium Compounds
Inorganic compounds that include a positively charged tetrahedral nitrogen (ammonium ion) as part of their structure. This class of compounds includes a broad variety of simple ammonium salts and derivatives.
Drug Resistance, Bacterial
The ability of bacteria to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).
Microbial Sensitivity Tests
Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses).
Staphylococcus
A genus of gram-positive, facultatively anaerobic, coccoid bacteria. Its organisms occur singly, in pairs, and in tetrads and characteristically divide in more than one plane to form irregular clusters. Natural populations of Staphylococcus are found on the skin and mucous membranes of warm-blooded animals. Some species are opportunistic pathogens of humans and animals.
Drug Resistance, Microbial
The ability of microorganisms, especially bacteria, to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).
Anti-Bacterial Agents
Substances that reduce the growth or reproduction of BACTERIA.
Staphylococcus aureus
Potentially pathogenic bacteria found in nasal membranes, skin, hair follicles, and perineum of warm-blooded animals. They may cause a wide range of infections and intoxications.
Bacterial Proteins
Proteins found in any species of bacterium.
Chlorhexidine
A disinfectant and topical anti-infective agent used also as mouthwash to prevent oral plaque.
Protein Structure, Quaternary
The characteristic 3-dimensional shape and arrangement of multimeric proteins (aggregates of more than one polypeptide chain).
Choline
A basic constituent of lecithin that is found in many plants and animal organs. It is important as a precursor of acetylcholine, as a methyl donor in various metabolic processes, and in lipid metabolism.
Ammonium Sulfate
Sulfuric acid diammonium salt. It is used in CHEMICAL FRACTIONATION of proteins.
Bromides
Salts of hydrobromic acid, HBr, with the bromine atom in the 1- oxidation state. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Ammonium Chloride
An acidifying agent that has expectorant and diuretic effects. Also used in etching and batteries and as a flux in electroplating.

The optically determined size of exo/endo cycling vesicle pool correlates with the quantal content at the neuromuscular junction of Drosophila larvae. (1/3258)

According to the current theory of synaptic transmission, the amplitude of evoked synaptic potentials correlates with the number of synaptic vesicles released at the presynaptic terminals. Synaptic vesicles in presynaptic boutons constitute two distinct pools, namely, exo/endo cycling and reserve pools (). We defined the vesicles that were endocytosed and exocytosed during high K+ stimulation as the exo/endo cycling vesicle pool. To determine the role of exo/endo cycling vesicle pool in synaptic transmission, we estimated the quantal content electrophysiologically, whereas the pool size was determined optically using fluorescent dye FM1-43. We then manipulated the size of the pool with following treatments. First, to change the state of boutons of nerve terminals, motoneuronal axons were severed. With this treatment, the size of exo/endo cycling vesicle pool decreased together with the quantal content. Second, we promoted the FM1-43 uptake using cyclosporin A, which inhibits calcineurin activities and enhances endocytosis. Cyclosporin A increased the total uptake of FM1-43, but neither the size of exo/endo cycling vesicle pool nor the quantal content changed. Third, we increased the size of exo/endo cycling vesicle pool by forskolin, which enhances synaptic transmission. The forskolin treatment increased both the size of exo/endo cycling vesicle pool and the quantal content. Thus, we found that the quantal content was closely correlated with the size of exo/endo cycling vesicle pool but not necessarily with the total uptake of FM1-43 fluorescence by boutons. The results suggest that vesicles in the exo/endo cycling pool primarily participate in evoked exocytosis of vesicles.  (+info)

The interaction of n-tetraalkylammonium compounds with a human organic cation transporter, hOCT1. (2/3258)

Polyspecific organic cation transporters in epithelia play an important role in the elimination of many endogenous bioactive amines and therapeutically important drugs. Recently, the first human organic cation transporter (hOCT1) was cloned from liver. The purpose of the current study was to determine the effect of molecular size and hydrophobicity on the transport of organic cations by hOCT1. We studied the interaction of a series of n-tetraalkylammonium (n-TAA) compounds (alkyl chain length, N, ranging from 1 to 6 carbons) with hOCT1 in a transiently transfected human cell line, HeLa. [14C]tetraethylammonium (TEA) uptake was measured under different experimental conditions. Both cis-inhibition and trans-stimulation studies were carried out. With the exception of tetramethylammonium, all of the n-TAAs significantly inhibited [14C]TEA uptake. A reversed correlation of IC50 values (range, 3.0-260 microM) with alkyl chain lengths or partition coefficients (LogP) was observed. trans-Stimulation studies revealed that TEA, tetrapropylammonium, tetrabutylammonium, as well as tributylmethylammonium trans-stimulated TEA uptake mediated by hOCT1. In contrast, tetramethylammonium and tetrapentylammonium did not trans-stimulate [14C]TEA uptake, and tetrahexylammonium demonstrated an apparent "trans-inhibition" effect. These data indicate that with increasing alkyl chain lengths (N >/= 2), n-TAA compounds are more poorly translocated by hOCT1 although their potency of inhibition increases. Similar findings were obtained with nonaliphatic hydrocarbons. These data suggest that a balance between hydrophobic and hydrophilic properties is necessary for binding and subsequent translocation by hOCT1.  (+info)

Synaptic activation of GABAA receptors induces neuronal uptake of Ca2+ in adult rat hippocampal slices. (3/3258)

Synaptically evoked transmembrane movements of Ca2+ in the adult CNS have almost exclusively been attributed to activation of glutamate receptor channels and the consequent triggering of voltage-gated calcium channels (VGCCs). Using microelectrodes for measuring free extracellular Ca2+ ([Ca2+]o) and extracellular space (ECS) volume, we show here for the first time that synaptic stimulation of gamma-aminobutyric acid-A (GABAA) receptors can result in a decrease in [Ca2+]o in adult rat hippocampal slices. High-frequency stimulation (100-200 Hz, 0.4-0.5 s) applied in stratum radiatum close (+info)

Smoothing of the thermal stability of DNA duplexes by using modified nucleosides and chaotropic agents. (4/3258)

The effect of alkyltrimethylammonium ions on the thermostability of natural and modified DNA duplexes has been investigated. We have shown that the use of tetramethylammonium ions TMA+along with the chemical modification of duplexes allow the fine adjustment of T m and the possibility of obtaining several duplex systems with varied isostabilizedtemperatures, some of which show greater stability than those of natural DNA. This approach could be very useful for DNA sequencing by hybridization.  (+info)

Selective effects of a 4-oxystilbene derivative on wild and mutant neuronal chick alpha7 nicotinic receptor. (5/3258)

1. We assessed the pharmacological activity of triethyl-(beta-4-stilbenoxy-ethyl) ammonium (MG624), a drug that is active on neuronal nicotinic receptors (nicotinic AChR). Experiments on the major nicotinic AChR subtypes present in chick brain, showed that it inhibits the binding of [125I]-alphaBungarotoxin (alphaBgtx) to the alpha7 subtype, and that of [3H]-epibatidine (Epi) to the alpha4beta2 subtype, with Ki values of respectively 106 nM and 84 microM. 2. MG624 also inhibited ACh elicited currents (I(ACh)) in the oocyte-expressed alpha7 and alpha4beta2 chick subtypes with half-inhibitory concentrations (IC50) of respectively 109 nM and 3.2 microM. 3. When tested on muscle-type AChR, it inhibited [125I]-alphaBgtx binding with a Ki of 32 microM and ACh elicited currents (I(ACh)) in the oocyte-expressed alpha1beta1gammadelta chick subtype with an IC50 of 2.9 microM. 4. The interaction of MG624 with the alpha7 subtype was investigated using an alpha7 homomeric mutant receptor with a threonine-for-leucine 247 substitution (L247T alpha7). MG624 did not induce any current in oocytes expressing the wild type alpha7 receptor, but did induce large currents in the oocyte-expressed L247T alpha7 receptor. The MG624 elicited current (I(MG62)) has an EC50 of 0.2 nM and a Hill coefficient nH of 1.9, and is blocked by the nicotinic receptor antagonist methyllycaconitine (MLA). 5. These binding and electrophysiological studies show that MG624 is a potent antagonist of neuronal chick alpha7 nicotinic AChR, and becomes a competitive agonist following the mutation of the highly conserved leucine residue 247 located in the M2 channel domain.  (+info)

Identification and characterization of multiple subtypes of muscarinic acetylcholine receptors and their physiological functions in canine hearts. (6/3258)

M2 receptors have long been believed to be the only functional subtype of muscarinic acetylcholine receptor (mAChR) in the heart, although recent studies have provided evidence for the presence of other subtypes. We performed a detailed study to clarify this issue. In the presence of tetramethylammonium (1 microM to 10 mM), a novel K+ current with both delayed rectifying and inward rectifying properties (IKTMA) was activated in single canine atrial myocytes. 4-Aminopyridine (0.05-2 mM) also induced a K+ current (IK4AP) with characteristics similar to but distinct from those of IKTMA. Both IKTMA and IK4AP were abolished by 1 microM atropine. IK4AP, but not IKTMA, was minimized by treatment with pertussis toxin. IKTMA was markedly decreased by 4-diphenylacetoxy-N-methylpiperidine methiodide (a selective antagonist for M3 subtype) but was not altered by pirenzepine (for M1), methoctramine (for M2), and tropicamide (for M4). Tropicamide substantially reduced IK4AP, but the antagonists for other mAChR subtypes had no effects on IK4AP. By comparison, IKACh (ACh-induced K+ current) was significantly depressed by methoctramine but was unaltered by other antagonists. Results from displacement binding of [methyl-3H]N-scopolamine methyl chloride with pirenzepine, methoctramine, 4-diphenylacetoxy-N-methylpiperidine methiodide, or tropicamide revealed the coexistence of multiple mAChR subtypes in canine atrium. Cloning of cDNA fragments and detection of mRNAs coding for M2, M3, and M4 provided further supporting evidence. Our results suggest that 1) multiple subtypes of mAChRs (M2/M3/M4) coexist in the dog heart and 2) different subtypes of mAChRs are coupled to different K+ channels. Our findings represent the first functional evidence for the physiological role of cardiac M3 and M4 receptors.  (+info)

Ion binding and permeation through the lepidopteran amino acid transporter KAAT1 expressed in Xenopus oocytes. (7/3258)

1. The transient and steady-state currents induced by voltage jumps in Xenopus oocytes expressing the lepidopteran amino acid co-transporter KAAT1 have been investigated by two-electrode voltage clamp. 2. KAAT1-expressing oocytes exhibited membrane currents larger than controls even in the absence of amino acid substrate (uncoupled current). The selectivity order of this uncoupled current was Li+ > Na+ approximately Rb+ approximately K+ > Cs+; in contrast, the permeability order in non-injected oocytes was Rb+ > K+ > Cs+ > Na+ > Li+. 3. KAAT1-expressing oocytes gave rise to 'pre-steady-state currents' in the absence of amino acid. The characteristics of the charge movement differed according to the bathing ion: the curves in K+ were strongly shifted (> 100 mV) towards more negative potentials compared with those in Na+, while in tetramethylammonium (TMA+) no charge movement was detected. 4. The charge-voltage (Q-V) relationship in Na+ could be fitted by a Boltzmann equation having V of -69 +/- 1 mV and slope factor of 26 +/- 1 mV; lowering the Na+ concentrations shifted the Q-V relationship to more negative potentials; the curves could be described by a generalized Hill equation with a coefficient of 1.6, suggesting two binding sites. The maximal movable charge (Qmax) in Na+, 3 days after injection, was in the range 2.5-10 nC. 5. Addition of the transported substrate leucine increased the steady-state carrier current, the increase being larger in high K+ compared with high Na+ solution; in these conditions the charge movement disappeared. 6. Applying Eyring rate theory, the energy profile of the transporter in the absence of organic substrate included a very high external energy barrier (25.8 RT units) followed by a rather deep well (1.8 RT units).  (+info)

Adenosine inhibits the transfected Na+-H+ exchanger NHE3 in Xenopus laevis renal epithelial cells (A6/C1). (8/3258)

1. Adenosine influences the vectorial transport of Na+ and HCO3- across kidney epithelial cells. However, its action on effector proteins, such as the Na+-H+ exchanger NHE3, an epithelial brush border isoform of the Na+-H+ exchanger (NHE) gene family, is not yet defined. 2. The present study was conducted in Xenopus laevis distal nephron A6 epithelia which express both an apical adenosine receptor of the A1 type (coupled to protein kinase C (PKC)) and a basolateral receptor of the A2 type (coupled to protein kinase A (PKA)). The untransfected A6 cell line expresses a single NHE type (XNHE) which is restricted to the basolateral membrane and which is activated by PKA. 3. A6 cell lines were generated which express exogenous rat NHE3. Measurements of side-specific pHi recovery from acid loads in the presence of HOE694 (an inhibitor with differential potency towards individual NHE isoforms) detected an apical resistant Na+-H+ exchange only in transfected cell lines. The sensitivity of the basolateral NHE to HOE694 was unchanged, suggesting that exogenous NHE3 was restricted to the apical membrane. 4. Stimulation of the apical A1 receptor with N 6-cyclopentyladenosine (CPA) inhibited both apical NHE3 and basolateral XNHE. These effects were mimicked by the addition of the protein kinase C (PKC) activator phorbol 12-myristate 13-acetate (PMA) and partially prevented by the PKC inhibitor calphostin C which also blocked the effect of PMA. 5. Stimulation of the basolateral A2 receptor with CPA inhibited apical NHE3 and stimulated basolateral XNHE. These effects were mimicked by 8-bromo-cAMP and partially prevented by the PKA inhibitor H89 which entirely blocked the effect of 8-bromo-cAMP. 6. In conclusion, CPA inhibits rat NHE3 expressed apically in A6 epithelia via both the apical PKC-coupled A1 and the basolateral PKA-coupled A2 adenosine receptors.  (+info)

quaternary ammonium compound
quaternary ammonium compound definition. Explain quaternary ammonium compound. What is quaternary ammonium compound? quaternary ammonium compound meaning. quaternary ammonium compound sense. quaternary ammonium compound FAQ. quaternary ammonium compound synonyms.
http://wordthrill.com/define/quaternary+ammonium+compound/
US5522942A - Method for cleaning hard surfaces using an aqueous solution of quaternary ammonium compound, combination of...
A synergistic cleaning composition has been discovered comprising an aqueous solution a quaternary ammonium compound component; a nonionic surfactant component; and a glycol ether solvent. Surprisingly, the combination of the quaternary ammonium compound component, the nonionic surfactant component, and glycol ether solvent provides a synergistic effect where the cleaning composition functions with a low level of quaternary ammonium compound component while still maintaining at least one of the following desirable properties, as follows: an acceptable cleaning efficacy; a low level irritation or toxicity profile; and/or a broad spectrum antimicrobial activity.
https://patents.google.com/patent/US5522942?oq=5708422
Diffusion limitation in the block by symmetric tetraalkylammonium ions of anthrax toxin channels in planar phospholipid bilayer...Diffusion limitation in the block by symmetric tetraalkylammonium ions of anthrax toxin channels in planar phospholipid bilayer...
TY - JOUR. T1 - Diffusion limitation in the block by symmetric tetraalkylammonium ions of anthrax toxin channels in planar phospholipid bilayer membranes. AU - Blaustein, Robert O.. AU - Finkelstein, Alan. PY - 1990/11. Y1 - 1990/11. N2 - Current flow through the channel formed in planar phospholipid bilayer membranes by the PA65 fragment of anthrax toxin is blocked, in a voltage-dependent manner, by tetraalkylammonium ions (at micromolar concentrations), which bind to a blocking site within the channel lumen. We have presented evidence that diffusion plays a significant role in the kinetics of blocking by tetrabutylammonium ion (Bu4N+) from the cis (toxin-containing) side of the membrane (Blaustein, R. O., E. J. A. Lea, and A. Finkelstein. 1990. J. Gen. Physiol. 96:921-942); in this paper we examine the implications and consequences of diffusion control for binding kinetics. As expected for a diffusion-affected reaction, both the entry rate constant (k1cis) of Bu4N+ from the cis solution to the ...
https://einstein.pure.elsevier.com/en/publications/diffusion-limitation-in-the-block-by-symmetric-tetraalkylammonium-2
Quaternary Ammonium Compound | Definition of Quaternary Ammonium Compound by Merriam-WebsterQuaternary Ammonium Compound | Definition of Quaternary Ammonium Compound by Merriam-Webster
Define quaternary ammonium compound: any of numerous strong bases and their salts derived from ammonium by replacement of the hydrogen atoms with…
https://www.merriam-webster.com/dictionary/quaternary%20ammonium%20compound
Dodecyltrimethylammonium hydrogen sulfate | 103999-25-3Dodecyltrimethylammonium hydrogen sulfate | 103999-25-3
Visit ChemicalBook To find more Dodecyltrimethylammonium hydrogen sulfate(103999-25-3) information like chemical properties,Structure,melting point,boiling point,density,molecular formula,molecular weight, physical properties,toxicity information,customs codes. You can also browse global suppliers,vendor,prices,Price,manufacturers of Dodecyltrimethylammonium hydrogen sulfate(103999-25-3). At last,Dodecyltrimethylammonium hydrogen sulfate(103999-25-3) safety, risk, hazard and MSDS, CAS,cas number,Use,cas no may also be you need.
https://www.chemicalbook.com/ChemicalProductProperty_EN_CB0151869.htm
Archive ouverte HAL - Phytotoxicity and oxidative effects of typical quaternary ammonium compounds on wheat (Triticum aestivum...Archive ouverte HAL - Phytotoxicity and oxidative effects of typical quaternary ammonium compounds on wheat (Triticum aestivum...
The large-scale use of quaternary ammonium compounds (QACs) in medicines or disinfectants can lead to their release into the environment, posing a potential risk to organisms. This study examined the effects of three typical QACs, dodecyltrimethylammonium chloride (DTAC), dodecyldimethylbenzylammonium chloride (DBAC), and didodecyldimethylammonium chloride (DDAC), on hydroponically cultured wheat seedlings. After 14 days of exposure, both hormesis and phytotoxicity were observed in the wheat seedlings. The shoot and root fresh weight gradually increased as QAC concentrations rose from 0.05 to 0.8 mg L-1. However, higher QAC concentrations severely inhibited plant growth by decreasing shoot and root fresh weight, total root length, and photosynthetic pigment content. Moreover, the increase in malondialdehyde and O-2(.-) contents, as well as root membrane permeability, reflected an oxidative burst and membrane lipid peroxidation caused by QACs. However, the effects of QACs on the levels of these oxidative
https://hal.archives-ouvertes.fr/hal-02352495
Tetramethylammonium chloride - WikipediaTetramethylammonium chloride - Wikipedia
Tetramethylammonium chloride is one of the simplest quaternary ammonium salts, with four methyl groups tetrahedrally attached to the central N. The chemical formula (CH3)4N+Cl− is often abbreviated further as Me4N+Cl−. It is a hygroscopic colourless solid that is soluble in water and polar organic solvents. Tetramethylammonium chloride is a major industrial chemical,[1] being used in such processes as hydrofracking.[2] In the laboratory, it has fewer synthetic chemical applications than quaternary ammonium salts containing longer N-alkyl substituents, which are used extensively as phase-transfer catalysts. ...
https://en.m.wikipedia.org/wiki/Tetramethylammonium_chloride
Patent US5698076 - Tissue paper containing a vegetable oil based quaternary ammonium compound - Google PatentsPatent US5698076 - Tissue paper containing a vegetable oil based quaternary ammonium compound - Google Patents
Fibrous cellulose materials useful in the manufacture of soft, absorbent paper products such as paper towels, facial tissues, and toilet tissue are disclosed. The paper products contain a vegetable oil based quaternary ammonium chemical softening compound. Examples of preferred vegetable oil based quaternary ammonium chemical softening compounds include diester di(oleyl)dimethyl ammonium chloride (DEDODMAC) (i.e., di(octadec-z-9-eneoyloxyethyl)dimethyl ammonium chloride) derived from canola oil and/or high oleic safflower oil. Variables that need to be adjusted to maximize the fluidity of vegetable oil based acyl groups include the cis/trans isomer ratio or the Iodine Value (IV) of the fatty acyl groups. The tissue softness is further enhanced by controlling the purity of the fatty acyl groups and the di-substituted versus mono-substituted long chain hydrocarbyl substituent ratio in the quaternary ammonium compounds.
http://www.google.co.uk/patents/US5698076
Patent US7358215 - Quaternary ammonium salts as thickening agents for aqueous systems - Google PatentsPatent US7358215 - Quaternary ammonium salts as thickening agents for aqueous systems - Google Patents
This invention relates to the use of alkyl amido quaternary ammonium salts, and formulations thereof, as thickening agents in aqueous based fluids, especially those used in oil field applications. The quaternary ammonium salts of the present invention exhibit improved gelling characteristics.
http://www.google.com/patents/US7358215?dq=6289460
Tetramethylammonium chloride CAS#: 75-57-0Tetramethylammonium chloride CAS#: 75-57-0
ChemicalBook provide Chemical industry users with Tetramethylammonium chloride Boiling point Melting point,Tetramethylammonium chloride Density MSDS Formula Use,If You also need to Tetramethylammonium chloride Other information,welcome to contact us.
https://www.chemicalbook.com/ProductChemicalPropertiesCB9118809_EN.htm
Tetrabutylammonium fluoride CAS#: 429-41-4Tetrabutylammonium fluoride CAS#: 429-41-4
ChemicalBook provide Chemical industry users with Tetrabutylammonium fluoride(429-41-4) Boiling point Melting point,Tetrabutylammonium fluoride(429-41-4) Density MSDS Formula Use,If You also need to Tetrabutylammonium fluoride(429-41-4) Other information,welcome to contact us.
https://m.chemicalbook.com/ProductChemicalPropertiesCB8740854_EN.htm
Efflux pump induction by quaternary ammonium compounds and fluoroquinolone resistance in bacteria -ORCAEfflux pump induction by quaternary ammonium compounds and fluoroquinolone resistance in bacteria -ORCA
Biocides, primarily those containing quaternary ammonium compounds (QAC), are heavily used in hospital environments and various industries (e.g., food, water, cosmetic). To date, little attention has been paid to potential implications of QAC use in the emergence of antibiotic resistance, especially fluoroquinolone-resistant bacteria in patients and in the environment. QAC-induced overexpression of efflux pumps can lead to: cross resistance with fluoroquinolones mediated by multidrug efflux pumps; stress response facilitating mutation in the Quinolone Resistance Determining Region; and biofilm formation increasing the risk of transfer of mobile genetic elements carrying fluoroquinolone or QAC resistance determinants. By following the European Biocidal Product Regulation, manufacturers of QAC are required to ensure that their QAC-based biocidal products are safe and will not contribute to emerging bacterial resistance.. ...
http://orca.cf.ac.uk/84361/
ChemIDplus - 99035-72-0 - Quaternary ammonium compounds, benzyl-C10-16-alkylbis(hydroxyethyl), chlorides - Searchable synonyms,...ChemIDplus - 99035-72-0 - Quaternary ammonium compounds, benzyl-C10-16-alkylbis(hydroxyethyl), chlorides - Searchable synonyms,...
99035-72-0 - Quaternary ammonium compounds, benzyl-C10-16-alkylbis(hydroxyethyl), chlorides - Searchable synonyms, formulas, resource links, and other chemical information.
https://chem.nlm.nih.gov/chemidplus/rn/99035-72-0
ChemIDplus - 91721-91-4 - Quaternary ammonium compounds, di-C10-18-alkyldimethyl, chlorides - Searchable synonyms, formulas,...ChemIDplus - 91721-91-4 - Quaternary ammonium compounds, di-C10-18-alkyldimethyl, chlorides - Searchable synonyms, formulas,...
91721-91-4 - Quaternary ammonium compounds, di-C10-18-alkyldimethyl, chlorides - Searchable synonyms, formulas, resource links, and other chemical information.
https://chem.nlm.nih.gov/chemidplus/rn/91721-91-4
Role of quaternary ammonium salts as new additives in the enantioselective organocatalytic β-benzylation of enals - Chemical...Role of quaternary ammonium salts as new additives in the enantioselective organocatalytic β-benzylation of enals - Chemical...
We report herein the efficiency of quaternary ammonium salts as co-catalysts in organocatalytic Michael reactions involving iminium activation of α,β-unsaturated aldehydes. The enantioselective formal benzylation of these substrates has been optimized and used to rationalize the role of the ammonium salts in Organocatalysis
https://pubs.rsc.org/en/content/articlelanding/2012/cc/c2cc31451g
Are there hydrogen bonds in supercritical methanol and ethanol? Temperature and length scale dependence of tetraalkylammonium...Are there hydrogen bonds in supercritical methanol and ethanol? Temperature and length scale dependence of tetraalkylammonium...
Are there hydrogen bonds in supercritical methanol and ethanol? Temperature and length scale dependence of tetraalkylammonium ion-amide interaction
http://www.readabstracts.com/Chemicals-plastics-and-rubber-industries/Are-there-hydrogen-bonds-in-supercritical-methanol-and-ethanol.html
US3959461A - Hair cream rinse formulations containing quaternary ammonium salts - Google Patents
New quaternary ammonium salts have been prepared from an amino amide and an amino ester and found to be useful in hair cream rinse formulations.
https://patents.google.com/patent/US3959461A/en
Quaternary ammonium salt of U50,488H elicits protective effects against hypoxic pulmonary hypertensionQuaternary ammonium salt of U50,488H elicits protective effects against hypoxic pulmonary hypertension
ABSTRACTThe present study aimed to investigate the role of quaternary ammonium salt of U50,488H (Q-U50,488H) in hypoxic pulmonary hypertension (HPH) and underlying mechanisms involved. A HPH animal model was established in rats under hypoxia and the mean pulmonary arterial pressure (mPAP) and right
https://insights.ovid.com/eujoph/201808050/00003656-201808050-00016
STABLE AQUEOUS SOLUTIONS OF SILANE QUAT AMMONIUM COMPOUNDS - Bolkan, Steven A.STABLE AQUEOUS SOLUTIONS OF SILANE QUAT AMMONIUM COMPOUNDS - Bolkan, Steven A.
Stable aqueous compositions of silane quaternary ammonium compounds are provided by diluting an alkanol solution of the silane quaternary ammonium compound in water with at least one nonionic surfacta
https://www.freepatentsonline.com/y2010/0028462.html
CRITERION Modified Letheen AgarCRITERION Modified Letheen Agar
Quaternary ammonium compounds are molecules which contain a nitrogen atom with four other atoms bonded to it. Most quaternary ammonium compounds are organic compounds and have biological activity. These compounds often work well as disinfectants, offering bactericidal and bacteriostatic effects. Modified Letheen Agar is used as a quaternary ammonium compound neutralizer for the sampling of environmental surfaces. Quaternary ammonia compounds are neutralized by lecithin while phenolic disinfectants and hexacholorphene are neutralized by Tween® 80. Together, lecithin and Tween® 80 neutralize ethanol.. Modified Letheen Agar is formulated as described in the 7th edition of the U.S. FDA Bacteriological Analytical Manual.(1) Modified Letheen Agar is recommended by the FDA for use in the microbiological testing of cosmetics.(2) The medium contains beef extract and peptone to provide a nutrient rich medium supporting the growth of a variety of microorganisms. The tryptone level was increased in the ...
https://catalog.hardydiagnostics.com/cp_prod/Content/hugo/CRITN-ModLetheenAgar.htm
TUSC2 expression vector in N-[1-(2,3-dioleoyloxy)propyl]-N,N,N-trimethylammonium chloride : cholesterol liposome nanoparticlesTUSC2 expression vector in N-[1-(2,3-dioleoyloxy)propyl]-N,N,N-trimethylammonium chloride : cholesterol liposome nanoparticles
Page contains details about TUSC2 expression vector in N-[1-(2,3-dioleoyloxy)propyl]-N,N,N-trimethylammonium chloride : cholesterol liposome nanoparticles . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
http://nano.nature.com/nano/GR-M1315536
Molecular Dynamics Simulations of Adsorption of Poly(acrylic acid) and Poly(methacrylic acid) on Dodecyltrimethylammonium...Molecular Dynamics Simulations of Adsorption of Poly(acrylic acid) and Poly(methacrylic acid) on Dodecyltrimethylammonium...
We have investigated the interaction of dodecyltrimethylammonium chloride (DoTA) micelle with weak polyelectrolytes, poly(acrylic acid) and poly(methacrylic acid). Anionic as well as un-ionized forms of the polyelectrolytes were studied. Polyelectrolyte-surfactant complexes were formed within 5-11 ns of the simulation time and were found to be stable. Association is driven purely by electrostatic interactions for anionic chains whereas dispersion interactions also play a dominant role in the case of un-ionized chains. Surfactant headgroup nitrogen atoms are in close contact with the carboxylic oxygens of the polyelectrolyte chain at a distance of 0.35 nm. In the complexes, the polyelectrolyte chains are adsorbed on to the hydrophilic micellar surface and do not penetrate into the hydrophobic core of the micelle. Polyacrylate chain shows higher affinity for complex formation with DoTA as compared to polymethacrylate chain. Anionic polyelectrolyte chains show higher interaction strength as compared to
https://www.semanticscholar.org/paper/Molecular-Dynamics-Simulations-of-Adsorption-of-Po-Sulatha-Natarajan/a580362b7133ee1beb7221af9100114f748fd719
Dodecyltrimethylammonium bromide for ion pair chromatography, ≥98.5% (AT) | Sigma-AldrichDodecyltrimethylammonium bromide for ion pair chromatography, ≥98.5% (AT) | Sigma-Aldrich
Sigma-Aldrich offers Sigma-Aldrich-44239, Dodecyltrimethylammonium bromide for your research needs. Find product specific information including CAS, MSDS, protocols and references.
https://www.sigmaaldrich.com/catalog/product/sial/44239?lang=en®ion=US
Avhandlingar.se: DODECYLTRIMETHYLAMMONIUM CHLORIDE
Avhandlingar om DODECYLTRIMETHYLAMMONIUM CHLORIDE. Sök bland 78317 avhandlingar från svenska högskolor och universitet på Avhandlingar.se.
http://www.avhandlingar.se/om/Dodecyltrimethylammonium+chloride/
Solid-Phase Synthesis of Triethylammonium Salt of 4-Oxothiazolidine-2-thione, Russian Journal of Applied Chemistry | 10.1023/A...Solid-Phase Synthesis of Triethylammonium Salt of 4-Oxothiazolidine-2-thione, Russian Journal of Applied Chemistry | 10.1023/A...
Read Solid-Phase Synthesis of Triethylammonium Salt of 4-Oxothiazolidine-2-thione, Russian Journal of Applied Chemistry on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
https://www.deepdyve.com/lp/springer_journal/solid-phase-synthesis-of-triethylammonium-salt-of-4-oxothiazolidine-2-fWhoxptxLF
Guanosine-3ʹ-5ʹ-cyclic Monophosphate, 8-(4-Chlorophenylthio)-, Triethylammonium Salt - Calbiochem | 370665Guanosine-3ʹ-5ʹ-cyclic Monophosphate, 8-(4-Chlorophenylthio)-, Triethylammonium Salt - Calbiochem | 370665
Guanosine-3ʹ-5ʹ-cyclic Monophosphate, 8-(4-Chlorophenylthio)-, Triethylammonium Salt - Calbiochem Selective membrane-permeable activator of protein kinase G that has a higher activation potential than cGMP. - Find MSDS or SDS, a COA, data sheets and more information.
https://www.emdmillipore.com/US/en/product/Guanosine-3-5-cyclic-Monophosphate-8-4-Chlorophenylthio-Triethylammonium-Salt-Calbiochem,EMD_BIO-370665
Emtricitabine Triphosphate Triethylammonium SaltEmtricitabine Triphosphate Triethylammonium Salt
Buy Emtricitabine Triphosphate Triethylammonium Salt online at LGC Standards, high-quality reference standards for pharmaceutical testing.
https://us.lgcstandards.com/US/en/Emtricitabine-Triphosphate-Triethylammonium-Salt/p/TRC-E525075-10MG
Quaternary ammonium compounds, (C16-18 and... - Registration Dossier - ECHAQuaternary ammonium compounds, (C16-18 and... - Registration Dossier - ECHA
For surface active substances the critical micelle concentration (CMC) method is used as an alternative to the water solubility. The critical micelle concentration (CMC) is determined by measuring the surface tension of test substance solutions at different test substance concentration. For surface active substances which form micelles in solution, the surface tension decreases with increasing concentration until the CMC is reached. At concentrations above the CMC, the surface tension remains constant. The CMC is determined from a plot of the surface tension versus the logarithm of the test substance concentration ...
https://echa.europa.eu/registration-dossier/-/registered-dossier/12749/4/9
Quaternary ammonium compounds, (C16-18 and... - Registration Dossier - ECHAQuaternary ammonium compounds, (C16-18 and... - Registration Dossier - ECHA
In vitro An in vitro study was conducted to investigate the potential of the read across substance, C16 TMAC (25% purity), to induce gene mutations Salmonella typhimurium strains, according to OECD Guideline 471, in compliance with GLP. Salmonella typhimurium strains TA 1535, TA 1537, TA 98 and TA 100 and Escherichia coli strain WP2 uvrA were treated with the test substance using the Ames plate incorporation (pre-experiment and experiment I) and pre-incubation methods (experiment II). The assay was performed in three independent experiments both with and without metabolic activation (S9 mix). All positive control showed a distinct increase in the number of revertant colonies. Strong cytotoxic effects, evidenced by a reduction in the number of revertants, occurred in the test groups with and without S9 mix. No substantial increase in revertant colony numbers in any of the five tester strains was observed following treatment with the test substance either in the presence or absence of S9 mix. ...
https://echa.europa.eu/lv/registration-dossier/-/registered-dossier/12749/7/7/1
Arquad C-35 Cocotrimethylammonium chlorideArquad C-35 Cocotrimethylammonium chloride
Arquad C-35, Cocotrimethylammonium chloride, Quaternary ammonium compounds Alkyltrimethyl, Arquad C-35 is a quaternary ammonium compound - Cocotrimethylammonium chloride.
https://www.nouryon.com/product/arquad-c-35-cocotrimethylammonium-chloride/
Quaternary ammonium compounds, C12-C18 (even... - Registration Dossier - ECHAQuaternary ammonium compounds, C12-C18 (even... - Registration Dossier - ECHA
Oral: Study 1: A study was conducted to determine the oral repeated dose toxicity of the read across substance, C16 TMAC (24 -26% active in water), according to a method similar to OECD Guideline 407, in compliance with GLP. Groups of 10 male and female rats were administered 0, 30, 100 and 300 mg/kg bw/day of read across substance by oral gavage for 28 days. The read across substance used was a 24-26% aqueous solution but it is not clear if the doses mentioned were corrected. There were no treatment-related changes at the 30 and 100 mg/kg bw/day. In the high-dose group there was an increase in water consumption, changes in the absolute and relative weights of the adrenals and spleens (in males) without corresponding effects on haematology, clinical chemistry and histology. The forestomach of the high-dose group showed few microscopic changes, however animals in the high-dose recovery group showed a complete and regular regeneration of the forestomach mucosa. Hence, the forestomach effects were ...
https://www.echa.europa.eu/web/guest/registration-dossier/-/registered-dossier/12150/7/6/3
Quaternary ammonium compounds, (C16-18 and... - Registration Dossier - ECHAQuaternary ammonium compounds, (C16-18 and... - Registration Dossier - ECHA
The actual intake of test substance for both males and females given 250, 1000 and 2000 ppm throughout the study is approximately 16-25, 61-101 and 123-208 mg/kg bw/day, respectively for the F0 generation and 24-31, 96-123 and 202-252 mg/kg bw/day for the F1 generation. Details on results: Parent males (F0): No effects:mortality, clinical signs, mating and fertility indices, seminology parameters, macroscopic post-mortem examination and histopathology. Body weight: During the first week of dosing, the body weight gains were slightly low at the low and mid dose-levels (-13% and -11%, p,0.01, p,0.05, respectively) and moderately low at the high dose-level (days 1 to 8, -24%, p,0.001). This effect on body weight gain was observed over all the dosing period (days 1 to 106, - 11%, p,0.01; -8%, non-statistically significant and -20%, p,0.001, at 250, 1000 and 2000 ppm, respectively). At all dose-levels, when compared to controls, body weights were marginally lower for the low and mid dose-levels ...
https://chesar.echa.europa.eu/web/guest/registration-dossier/-/registered-dossier/12749/7/9/1
Quaternary ammonium compounds,... - Public activities coordination tool - ECHAQuaternary ammonium compounds,... - Public activities coordination tool - ECHA
The public activities coordination tool (PACT) provides an overview of the substance-specific activities that authorities are working on under REACH and the CLP Regulation. These activities are being carried out in line with ECHAs Integrated Regulatory Strategy.. PACT provides up-to-date information on the activities planned, ongoing or completed by ECHA and/or MSCAs for a given substance in the following areas:. ...
https://www.echa.europa.eu/web/guest/pact?p_p_id=disspact_WAR_disspactportlet&p_p_lifecycle=0&_disspact_WAR_disspactportlet_substanceId=100.087.083&_disspact_WAR_disspactportlet_jspPage=%2Fhtml%2Fportlet%2Fdisspact%2FdetailsPage%2Fview_detailsPage.jsp
tetrapentylammonium chloride Global Market and Forecast Research : ReportsnReports
[65 Pages Report] Check for Discount on tetrapentylammonium chloride Global Market and Forecast Research report by ChemReport. DescriptionWe provide independent and unbiased information on manufacturers, prices, production...
http://www.reportsnreports.com/reports/600226-tetrapentylammonium-chloride-global-market-and-forecast-research.html
New tetrapropylammonium bromide-based deep eutectic solvents: Synthesis and characterizations<...
TY - JOUR. T1 - New tetrapropylammonium bromide-based deep eutectic solvents. T2 - Synthesis and characterizations. AU - Jibril, Baba. AU - Mjalli, Farouq. AU - Naser, Jamil. AU - Gano, Zaharaddeen. PY - 2014. Y1 - 2014. N2 - Deep eutectic solvents are analogues of ionic liquids that are environmentally benign, have a range of desirable liquid properties and are easy to prepare. In this study, new tetrapropylammonium bromide (TPAB)-based deep eutectic solvents (DESs) are introduced. Different hydrogen bond donors (HBDs) - ethylene glycol, triethylene glycol and glycerol were used at different molar ratios of TPAB:HBD (1:2.5-1:5). Effects of temperature and the TPAB:HBD ratios on the DESs were investigated. Solvents of different physicochemical properties andwide liquid rangeswithminimummelting point temperatures of 249.75, 253.95 and 257.05 Kwere obtained for TPAB:ethylene glycol (1:4), TPAB:triethylene glycol (1:3) and TPAB/glycerol (1:3) respectively. The samples were further characterized in ...
https://squ.pure.elsevier.com/en/publications/new-tetrapropylammonium-bromide-based-deep-eutectic-solvents-synt-3
Benefits from hazards, benefits from nothing, and benefits from benefits: the combined effects of five quaternary ammonium...Benefits from hazards, benefits from nothing, and benefits from benefits: the combined effects of five quaternary ammonium...
Co-exposure of multiple quaternary ammonium compounds (QACs) is widely present in the aquatic environment. The knowledge about their toxicities to microorganism at low concentration is lacking. This study aims to test the toxic response of Vibrio qinghaiensis Q67 (12-h exposure) to individual and mixtures of QACs by the long-term microplate toxicity analysis method (L-MTA). Hormetic effects were observed for five individual QACs at 12-h exposure of Vibrio qinghaiensis Q67. The maximum stimulation effect of − 339.66% was present in the 0.00561 mol/L tetraethylammonium bromide solution. A stimulation effect (− 23.55%) was detected when each of QACs in the five-component mixture was present at 50% effect concentration (
https://enveurope.springeropen.com/articles/10.1186/s12302-020-00310-z/figures/4
Tetrabutylammonium Hydrogen Sulphate, Tetrabutylammonium Chloride ManufacturerTetrabutylammonium Hydrogen Sulphate, Tetrabutylammonium Chloride Manufacturer
TATVA CHINTAN based in Gujarat, India is a manufacturer, supplier, exporter of Cetrimide, Tetrabutylammonium Hydrogen Sulphate, Tetrabutylammonium Chloride, Tetrabutylammonium Bromide at the best price.
http://www.quaternaryammoniumsalts.com
Electrochemical studies of liquid chlorocuprates(I)
This research emphasized fundamental physical and electrochemical studies of systems based on the room temperature fused salt, triethyl-ammonium dichlorocuprate(I). Such systems, which must be maintained under a protective atmosphere, were also used in some preliminary battery studies. Spectra of dark green solutions of copper (II) chloride in triethylammonium dichlorocuprate(I) obey Beers law, with an absorption maximum at 402 nm, ε 2.02x10³ lit /mol cm. This behavior is typical of chlorocuprate(II) complexes. No special behavior due to intervalence transfer absorption is observed. Densities of solutions of various salts in triethylammotium dichlorocuprate(I) were determined dilatometrically in the range 25-50°C, permitting concentrations to be expressed both on weight and molarity bases. The endothermic formation of liquid triethylammonium dichlorocuprate( I) involved a 10.9% increase in molar volume. The specific conductance of triethylammonium dichlorocuprate(I) increases from ...
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/fb494c31r
DIDECYDIMETHYL AMMONIUM CHLORIDE (BIOCIDE 1010)
Quaternary ammonium compounds are any of a group of ammonium salts in which organic radicals have been substituted for all four hydrogens of the original ammonium cation. They has a central nitrogen atom which is joined to four organic radicals and one acid radical. The organic radicals may be alkyl, aryl, or aralkyl, and the nitrogen can be part of a ring system. They are prepared by treatment of an amine with an alkylating agent. They show a variety of physical, chemical, and biological properties and most compounds are soluble in water and strong electrolytes. Such compounds include ...
http://www.chemicalland21.com/specialtychem/perchem/DIDECYDIMETHYL%20AMMONIUM%20CHLORIDE.htm
Complex of Polymeric Quaternary Ammonium and Anionic Polymers as a New Antimicrobial Agent for Ophthalmic Compositions - Patent...Complex of Polymeric Quaternary Ammonium and Anionic Polymers as a New Antimicrobial Agent for Ophthalmic Compositions - Patent...
0031]Disclosed herein are ophthalmic solutions and methods for their use, which comprise a complex of at least one cationic compound and at least one an anionic polymer. In one embodiment, the complex can comprise a first and second cationic compound. In one embodiment, the first and second cationic compounds are antimicrobial agents. In one embodiment, the first cationic compound can be a polymeric quaternary ammonium compound. In one embodiment, the complex is formed of a first cationic component, a second cationic component and an anionic polymer. The complex can be used as an antimicrobial agent or as an antimicrobial component. The antimicrobial complexes disclosed herein can provide enhanced biocidal activity over other antimicrobial agents, without significantly contributing to ocular irritation or user discomfort. Typically, when mixing hydrophilic anionic polymers with cationic polymeric antimicrobial agents, formation of precipitates occurs and the antimicrobial activity is lost. This ...
http://www.patentsencyclopedia.com/app/20100234319
OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY AND PROCESS FOR PRODUCING a-AMINO ACID AND DERIVATIVE...OPTICALLY ACTIVE QUATERNARY AMMONIUM SALT HAVING AXIAL ASYMMETRY AND PROCESS FOR PRODUCING a-AMINO ACID AND DERIVATIVE...
NR20R21 (where R20 and R21 are each independently a hydrogen atom or a C1 to C4 alkyl group), a nitro group, a carbamoyl group, an N--(C1 to C4 alkyl)carbamoyl group, an N,N-di(C1 to C4 alkyl)carbamoyl group, or --NHCOR9 (where R9 is a C1 to C4 alkyl group that may be branched), a cyano group, --NR20R21 (where R20 and R21 are each independently a hydrogen atom or a C1 to C4 alkyl group), a nitro group, a carbamoyl group, an N--(C1 to C4 alkyl)carbamoyl group, an N,N-di(C1 to C4 alkyl)carbamoyl group, --NHCOR9 (where R9 is a C1 to C4 alkyl group that may be branched), and a halogen atom; and n is an integer from 1 to 12); (ix) --(CH2)nNR12COR13 (where R12 and R13 are groups independently selected from the group consisting of: (1) a hydrogen atom; (2) a C1 to C4 alkyl group that may be branched; (3) an aryl group, wherein the aryl group may be substituted with at least one group selected from the group consisting of: a C1 to C4 alkyl group that may be branched, a C1 to C5 alkoxy group that may be ...
http://www.patentsencyclopedia.com/app/20110152562
Hodnocení antimikrobní účinnosti nových látek typu kvarterních amoniových solí | CU Digital RepositoryHodnocení antimikrobní účinnosti nových látek typu kvarterních amoniových solí | CU Digital Repository
Author: Ondřej Suk Title: Evaluation of antimicrobial effectiveness of new quaternary ammonium salt compounds Diploma thesis Charles University in Prague, Faculty of Pharmacy in Hradec Králové Study program: Pharmacy Background: The aim of the work was to evaluate antimicrobial activity of newly proposed and prepared quaternary ammonium salts. Methods: Broth microdilution method was used to measure antimicrobial activity of 8 new substances divided into three structure groups on 8 bacteria strains: Staphylococcus aureus, methicillin-resistant Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Yersinia bercovieri, Klebsiella pneumoniae, Klebsiella pneumoniae ESBL positive and multiresistant Pseudomonas aeruginosa. Results: Out of the 3 structure groups, the highest antimicrobial potential was found with some methylmorpholine salts and benzylimidazole substituted salts. Generally, the substances were, as supposed, more efficient with the Gram-positive bacteria tribes than with ...
https://dspace.cuni.cz/handle/20.500.11956/118241?show=full
Hybridization of Oligonucleotide Probes in Aqueous Solutions: Washing in Buffers Containing Quaternary Ammonium Salts
Molecular Cloning, also known as Maniatis, has served as the foundation of technical expertise in labs worldwide for 30 years. No other manual has been so popular, or so influential.
http://molecularcloning.com/index.php?prt=160
Use of a Quaternary Ammonium Salt Supported on a Liposoluble Poly(ethylene glycol) Matrix for Laboratory and Industrial...Use of a Quaternary Ammonium Salt Supported on a Liposoluble Poly(ethylene glycol) Matrix for Laboratory and Industrial...
Close The Infona portal uses cookies, i.e. strings of text saved by a browser on the users device. The portal can access those files and use them to remember the users data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser. ...
https://www.infona.pl/resource/bwmeta1.element.acs-doi-10_1021_ie020188q
The Interactions between Quaternary Ammonium Cationic Surfactants and Bovine Serum Albumin
Abstract: UV-visible (UV-Vis) absorption spectroscopy, fluorescence spectroscopy (FL), dynamic light scattering (DLS) and isothermal titration calorimetry (ITC) were used to study the interactions between bovine serum albumin (BSA) and the three quaternary ammonium surfactants N-dodecyl-N-(2-hydroxyethyl)-N, Ndimethyl ammonium bromide (DHDAB), N-tetradecyl-N-(2-hydroxyethyl)-N, N-dimethyl ammonium bromide (THDAB) and N-cetyl-N-(2-hydroxyethyl)-N, N-dimethyl ammonium bromide (CHDAB). These surfactants quenched the intrinsic fluorescence of BSA, with longer alkyl chains resulting in more significant quenching. This was attributed to static quenching. Further evidence of static quenching was provided by UV-Vis absorption spectroscopy. The particle size of BSA was found to initially increase and then decrease with increasing surfactant concentration. The concentration of surfactant changed the type of interaction mode. This work revealed the mechanism and binding characteristics between surfactants ...
http://www.whxb.pku.edu.cn/EN/10.3866/PKU.WHXB201609231
n-ALKYLDIMETHYLBENZYLAMMONIUM CHLORIDE (HYAMINE)
Quaternary ammonium compounds are any of a group of ammonium salts in which organic radicals have been substituted for all four hydrogens of the original ammonium cation. They has a central nitrogen atom which is joined to four organic radicals and one acid radical. The organic radicals may be alkyl, aryl, or aralkyl, and the nitrogen can be part of a ring system. They are prepared by treatment of an amine with an alkylating agent. They show a variety of physical, chemical, and biological properties and most compounds are soluble in water and strong electrolytes. Such compounds include ...
http://www.chemicalland21.com/specialtychem/perchem/n-ALKYLDIMETHYLBENZYLAMMONIUM%20CHLORIDE.htm
The effect of ammonium on photosynthesis and the pathway of ammonium assimilation in Gymnodinium microadriaticum in vitro and...The effect of ammonium on photosynthesis and the pathway of ammonium assimilation in Gymnodinium microadriaticum in vitro and...
The effects of added ammonium ion (10-1000 μM) on photosynthetic 14CO2 fixation by tissues slices from the mantle of tridacnid clams, by coral tips, and by isolated zooxanthellae from clam mantle were examined. Ammonium ions stimulated photosynthesis in tissue slices but not in freshly isolated zooxanthellae. When ammonium stimulated 14CO2 fixation by coral tips an increase in water-soluble labelled compounds, especially amino acids, was observed. Even though ammonium ions did not stimulate photosynthesis in isolated zooxanthellae from clam mantle, light stimulated ammonium uptake in these cells. Studies with 15NH+4 confirmed earlier observations (in zooxanthellae isolated from Hippopus) of light-stimulated transfer of ammonium from the amido-N of glutamine to the amino-N of glutamate, glutamine and other amino acids. This observation, in isolated zooxanthellae and tissue slices, suggests that the glutamine synthase-glutamate synthetase pathway of ammonium incorporation is light-driven in these ...
http://rspb.royalsocietypublishing.org/content/227/1247/147
Linking ultrastructure and function in four genera of anaerobic ammonium-oxidizing bacteria: cell plan, glycogen storage, and...Linking ultrastructure and function in four genera of anaerobic ammonium-oxidizing bacteria: cell plan, glycogen storage, and...
Linking ultrastructure and function in four genera of anaerobic ammonium-oxidizing bacteria: cell plan, glycogen storage, and localization of cytochrome C ...
http://repository.ubn.ru.nl/handle/2066/72046
Graduate Thesis Or Dissertation | Some aspects of the mechanism of action of iodophor and other germicides on microorganisms |...
The concentrations of iodophor necessary to reduce the activity of several metabolic enzyme systems 50 percent was used as the basic approach in attempts to elucidate the mechanism of germicidal action of iodine. For comparisons, a chlorine-releasing germicide (Trichlorocide) and a quaternary ammonium compound were also tested. It was found that on parts per million basis, Trichlorocide inhibited the activity of most of the enzymes 50 percent in smaller concentrations than either iodophor or the quaternary ammonium compound. However on a molar basis iodophor was the most effective in inhibiting the activity of a majority of the enzymes. Conversely, the activity of most enzymes was not inhibited by the quaternary ammonium compound. In all tests where there was at least 50 percent inhibition of enzyme activity, the concentration of the germicide was well below that normally used for disinfection and sanitation purposes, providing further evidence on the sensitive nature of certain enzyme systems ...
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/rf55zb96k
Patent US6936640 - Biguanide/quaternary ammonium containing copolymeric biocides and use ... - Google PatentsPatent US6936640 - Biguanide/quaternary ammonium containing copolymeric biocides and use ... - Google Patents
Biguanide/quaternary ammonium compounds and the use of same as antimicrobial agents in pharmaceutical compositions are described. The biguanide/quaternary ammonium compounds are useful in the preservation of pharmaceutical compositions, particularly ophthalmic pharmaceutical compositions and compositions for treating contact lenses. The compounds are especially useful for disinfecting contact lenses.
http://www.google.co.uk/patents/US6936640
Ferric ammonium citrate syp Manufacturer & Supplier in Gujarat,India
We,PAVAN NUTRA ISO 22000:2005 certified Company - Manufacturer & Supplier of Ferric ammonium citrate syp from Surat, Gujarat, India. Find quality range of Ferric ammonium citrate syp at best market price.
http://m.pavannutra.net/ferric-ammonium-citrate-syp-4798103.html
High Quality [2-(diphenylmethoxy)ethyl]trimethylammonium bromide CAS NO 31065-89-1 Manufacturer - DideuHigh Quality [2-(diphenylmethoxy)ethyl]trimethylammonium bromide CAS NO 31065-89-1 Manufacturer - Dideu
Offer High Quality [2-(diphenylmethoxy)ethyl]trimethylammonium bromide CAS NO 31065-89-1 Manufacturer by China High Quality [2-(diphenylmethoxy)ethyl]trimethylammonium bromide CAS NO 31065-89-1 Manufacturer manufacturers. Provide professional after-sales service and guidance - Dideu.
https://www.chemicalorigin.com/High-Quality-2-diphenylmethoxy-ethyl-trimethylammonium-bromide-CAS-NO-31065-89-1-Manufacturer-pd44375453.html
Chemical Summary for Alkyl* trimethyl ammonium chloride *(90%C18, 10%C16)Chemical Summary for Alkyl* trimethyl ammonium chloride *(90%C18, 10%C16)
US EPA PC Code ); 069151 (US EPA PC Code Text ); 68002-62-0 (CAS number); 68002620; 68002620 (CAS number without hyphens); Alkyl* trimethyl ammonium chloride *(90%C18, 10%C16); Alkyl*trimethylammoniumchloride*90%C1810%C16; Arquad S-50; C16-18-Alkyltrimethylchlorides quaternary ammonium compounds; Quaternary ammonium compounds, C16-18-alkyltrimethyl, ...
http://www.pesticideinfo.org/Summary_Chemical.jsp?Rec_Id=PC37032
tetra propyl ammonium bromide - Manufacturers, Suppliers, Exporters, Importers in Indiatetra propyl ammonium bromide - Manufacturers, Suppliers, Exporters, Importers in India
Find here tetra propyl ammonium bromide manufacturers, tetra propyl ammonium bromide suppliers, tetra propyl ammonium bromide exporters, tetra propyl ammonium bromide importers. Get contact address of tetra propyl ammonium bromide manufacturing and supplying companies of India.
https://www.needsinfo.com/product/tetra-propyl-ammonium-bromide
調査レポート | 表面殺菌剤の世界市場予測（～2022年）：第四アンモニウム化合物、クロルヘキシジン・グルコン酸塩、フェノール、アルコール、アルデヒド | MarketsandMarkets調査レポート | 表面殺菌剤の世界市場予測（～2022年）：第四アンモニウム化合物、クロルヘキシジン・グルコン酸塩、フェノール、アルコール、アルデヒド | MarketsandMarkets
The surface disinfectants market is segmented on the basis of type, formulation, application, and end user. On the basis of type, the market is segmented into quaternary ammonium compounds, chlorhexidine gluconate, phenolic compounds, alcohols, aldehydes, and other surface disinfectants. The quaternary ammonium compounds segment is expected to account for the largest share of the market in 2017. The growth in this segment is primarily attributed to widespread availability and large consumption of surface disinfectants in hospitals.. Based on formulation, the surface disinfectant market is segmented into liquids, wipes, and sprays. In 2017, the liquids segment accounted for the largest share of the market. Factors such as the increasing demand for the disinfection of hospital areas and the wide adaptability of these formulations are expected to drive the growth of this market segment.. By region, the surface disinfectants market is segmented into North America, Europe, Asia, and the Rest of the ...
http://mkt.h-and-i.jp/marketsandmarkets-industry-169234-data
Extremely high prevalence of antiseptic resistant Quaternary Ammonium Compound E gene among clinical isolates of multiple drug...Extremely high prevalence of antiseptic resistant Quaternary Ammonium Compound E gene among clinical isolates of multiple drug...
Multiple drug resistance Acinetobacter baumannii (MDRAB) ranks top among the nosocomial pathogen due to their environmental elasticity, ability to colonize various body sites of hospitalized patients, long-time persistence, association with multiple drug resistance and their successful outbreak potential [1-5]. It causes a wide spectrum of nosocomial infections which includes infections of bloodstream, urinary and respiratory tract, and ventilator associated pneumonia commonly among Intensive Care Unit patients (ICU) [6,7].. The main sources of transmission implicated with A. baumannii infections are person to person contact or through contaminated surface [8] and previous room occupancy by patients with A. baumannii infection or colonization. Epidemiological studies have clearly shown that hospital environment and colonized patients as the major reservoirs of A. baumannii infections [9]. Management of A. baumannii infections is the greatest challenge for patients, clinicians and infection ...
https://ann-clinmicrob.biomedcentral.com/articles/10.1186/s12941-015-0071-7
Synthesis of manganite perovskites by reverse homogeneous precipitation method in the presence of alkylammonium cations<...
TY - JOUR. T1 - Synthesis of manganite perovskites by reverse homogeneous precipitation method in the presence of alkylammonium cations. AU - Teraoka, Yasutake. AU - Nanri, Shinichi. AU - Moriguchi, Isamu. AU - Kagawa, Shuichi. AU - Shimanoe, Kengo. AU - Yamazoe, Noboru. N1 - Copyright: Copyright 2018 Elsevier B.V., All rights reserved.. PY - 2000. Y1 - 2000. N2 - A single-phase LaMnO3+δ perovskite with high surface area could be synthesized after air-calcining the hydroxide precursor at 650 °C and above. The precursor was easily obtained by dropping a mixed aqueous solution of La and Mn nitrates into highly basic aq NH3 with and without the presence of N(CH3)4Br. The addition of N(CH3)4Br was effective in increasing the specific surface area of the products as well as in stabilizing the colloidal solution of the hydroxide precursor.. AB - A single-phase LaMnO3+δ perovskite with high surface area could be synthesized after air-calcining the hydroxide precursor at 650 °C and above. The ...
https://kyushu-u.pure.elsevier.com/en/publications/synthesis-of-manganite-perovskites-by-reverse-homogeneous-precipi
Wholesale Quaternary Ammonium Polymer from Quaternary Ammonium Polymer Supplier - waterpurifyingchemicals
Wholesale Quaternary Ammonium Polymer from China Quaternary Ammonium Polymer Wholesaler - we are quality Quaternary Ammonium Polymer Supplier of waterpurifyingchemicals.
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日本微生物生態学会第30回土浦大会 » PK-192 (JTK):Molecular approach for detection of anaerobic anmmonium-oxidizing bacteria in sludge for...
The purpose of this study was to identify anaerobic ammonium-oxidizing bacteria and to support quantitative PCR results which were performed for searching an effective seeding sludge to achieve successful enrichment of anaerobic ammonium-oxidizing bacteria. Eleven sludge-samples originated from ten purification facilities for livestock wastewater were used in this study. At first, six samples among the eleven samples were selected by gas productivity per a gram biomass. The selected samples were used for the experiments of qPCR and 454 pyrosequencing after extraction of the genomic DNAs. The quantitative PCR was done with the primer sets of AMX818F/AMX1066R and HZO2aF/HZO2aR. The amplicons for pyrosequencing analysis were constructed by using the primer-set which is consisted of a specific pla46F primer targeting the conserved 16S rRNA gene belongs to Plantomycetes phylum and eub 518R targeting the conserved 16S rRNA genes of all bacteria. There is no meaningful correlation between the results ...
http://www.microbial-ecology.jp/meeting/?p=2928
Enhancing the electrochemical performance of lithium sulfur batteries using cetyl trimethylammonium bromide coated separator<...
TY - JOUR. T1 - Enhancing the electrochemical performance of lithium sulfur batteries using cetyl trimethylammonium bromide coated separator. AU - Cho, Sung Ho. AU - Cho, Sung Man. AU - Bae, Ki Yoon. AU - Kim, Byung Hyuk. AU - Son, Byung Dae. AU - Yoon, Wooyoung. PY - 2018/1/1. Y1 - 2018/1/1. N2 - In this study, cetyltrimethylammonium bromide (CTAB)-modified separator is developed by using a simple and facile method for lithium-sulfur (Li-S) batteries. CTAB is coated on only one side of separator using a doctor blade. The coated CTAB on the separator improves wettability between separator and electrolyte and ionic conductivity of separator. In addition, CTAB also inhibits the migration of dissolved polysulfides to the anode side. These phenomena improve the electrochemical properties of Li-S batteries using CTAB-coated separators. Cells using the CTAB-coated separator exhibit an initial capacity of 1136 mAh g−1 at 0.2 C-rate. In addition, they can maintain a higher capacity (765 mAh g−1) and ...
https://koreauniv.pure.elsevier.com/en/publications/enhancing-the-electrochemical-performance-of-lithium-sulfur-batte
Apparent molar heat capacities of n-Alcohols (C2 to C4) and symmetric Tetraalkylammonium Bromides (C2 to C5) in Water-N,N...Apparent molar heat capacities of n-Alcohols (C2 to C4) and symmetric Tetraalkylammonium Bromides (C2 to C5) in Water-N,N...
The apparent molar heat capacities, ϕ C p , of ethanol, n-propanol, n-butanol, and tetraethylammonium, tetra-n-propylammonium, tetra-n-butylammonium and tetra-n-pentylammonium bromides have been measured measured using a Picker flow calorimeter (Sodev, Canada, Model CP-Cpr) at 298.15 K in water-N,N-dimethylformamide (DMF) mixtures. The contribution of the CH2 moiety, ϕ C p (CH2), was estimated from these data as the change in ϕ C p per additional CH2 unit. The values of ϕ C p (CH2) in water (ca. 100 J·K−1·mol−1) are two to three times those in neat organic solvents (ca. 30-40 J·K−1·mol−1), consistent with a substantial contribution from hydrophobic solvation in water. In water-rich aqueous DMF solutions, ϕ C p (CH2) decreases monotonically with increasing DMF concentration, the decrease being more rapid for the n-alcohols. This trend differs significantly from that reported in the literature for highly aqueous mixtures of t-butanol, where ϕ C p (CH2) passes through a ...
https://researchrepository.murdoch.edu.au/id/eprint/32347/
Catalyst poisoning and selectivity constants in polyethylene glycol catalyzed phase transfer catalysis<...
TY - JOUR. T1 - Catalyst poisoning and selectivity constants in polyethylene glycol catalyzed phase transfer catalysis. AU - Neumann, Ronny. AU - Sasson, Yoel. PY - 1985. Y1 - 1985. N2 - Polyethylene glycol was found to undergo anionic catalyst poisoning by lipophilic anions in a manner similar to that of quaternary ammonium salts, even though the interaction between alkali salts and the catalyst is generally considered to be influenced only by the cation. From reaction profiles which indicated catalyst poisoning, an exact kinetic equation describing the conversion as a function of time could be used to compute selectivity constants, Ks, by graphic iterations.. AB - Polyethylene glycol was found to undergo anionic catalyst poisoning by lipophilic anions in a manner similar to that of quaternary ammonium salts, even though the interaction between alkali salts and the catalyst is generally considered to be influenced only by the cation. From reaction profiles which indicated catalyst ...
https://sofi-northwestern.pure.elsevier.com/en/publications/catalyst-poisoning-and-selectivity-constants-in-polyethylene-glyc
Econo 701 - Discount refined quaternary ammonium disinfectant and germicide - CYNDAN ChemicalsEcono 701 - Discount refined quaternary ammonium disinfectant and germicide - CYNDAN Chemicals
Cyndan Econo 701 is an affordable powder puff fragranced antiseptic germicide and disinfectant, refined quaternary ammonium compound.
https://cyndan.com.au/en/econo-discount-chemicals/261-econo-701-discount-refined-quaternary-ammonium-disinfectant-and-germicide.html
Ferric ammonium citrate (green) 50grFerric ammonium citrate (green) 50gr
Ferric ammonium citrate, key ingredient for processes such as cyanotype or Vandyke brownprint. Analytical grade for highest quality (p.p.a). 50 grams
http://alternativephotographicsupplies.com/collection/frontpage/cytrynian-amonowo-zelazowy-50g
Roccal-D - WikipediaRoccal-D - Wikipedia
Roccal-D is a disinfectant manufactured by Pfizer that is used in many animal care facilities and some biological laboratories. It is effective against bacteria including Mycoplasma, Streptococcus, Staphylococcus, E. coli, and Salmonella. It also destroys viruses including canine parvovirus, parainfluenza-3 and pseudorabies. Roccal was originally produced by Winthrop Laboratories. Its active ingredients include quaternary ammonium compounds from the family of benzalkonium chlorides and didecyldimethylammonium chloride. These compounds are nitrogenous cationic surface active agents. Benzalkonium chloride is a mixture of alkylbenzyl dimethylammonium chlorides of various alkyl chain lengths. The greatest bactericidal activity is associated with the C12-C14 alkyl derivatives. The current formulation of Roccal also includes tributyltin oxide ...
https://en.wikipedia.org/wiki/Roccal-D
Studies of PET nonwovens modified by novel antimicrobials configured with both N-halamine and dual quaternary ammonium with...
TY - JOUR. T1 - Studies of PET nonwovens modified by novel antimicrobials configured with both N-halamine and dual quaternary ammonium with different alkyl chain length. AU - Chien, Hsiu Wen. AU - Chen, Ying Yuan. AU - Chen, Yen Lun. AU - Cheng, Chi Hui. AU - Lin, Jui-Che. PY - 2019/1/1. Y1 - 2019/1/1. N2 - This work describes the synthesis of novel antimicrobial agents consisting of N-halamine and dual quaternary ammonium with different alkyl chain lengths and their antimicrobial applications for PET nonwovens. The antimicrobial agents were grafted onto PET nonwovens via esterification with a crosslinker, 1,2,3,4-butanetetracarboxylic acid (BTCA). The cyclic amide structure in the antimicrobial agents could be easily converted to N-halamine after immersion in a diluted chlorine bleach solution. Variations in surface chemical composition of the modified PET nonwovens were examined by XPS. Antimicrobial activities of the nonwovens/fabrics were tested against S. aureus (Gram-positive) and E. coli ...
https://researchoutput.ncku.edu.tw/en/publications/studies-of-pet-nonwovens-modified-by-novel-antimicrobials-configu
DailyMed - RELISTOR- methylnaltrexone bromide tablet RELISTOR- methylnaltrexone bromide injection, solutionDailyMed - RELISTOR- methylnaltrexone bromide tablet RELISTOR- methylnaltrexone bromide injection, solution
Distribution The steady-state volume of distribution (Vss) of methylnaltrexone is approximately 1.1 L/kg. The fraction of methylnaltrexone bound to human plasma proteins is 11% to 15%, as determined by equilibrium dialysis. Elimination Following oral administration of a single 450 mg dose of RELISTOR tablets, concentrations of methylnaltrexone declined in multiphasic manner with a terminal half-life (t1/2) of approximately 15 hours.. Metabolism In an intravenous mass balance study, approximately 44% of the administered radioactivity was recovered in the urine over 24 hours with 5 distinct metabolites. None of the detected metabolites was in amounts over 6% of administered radioactivity. Conversion to methyl-6-naltrexol isomers (5% of total) and methylnaltrexone sulfate (1% of total) appear to be the primary pathways of metabolism. N‑demethylation of methylnaltrexone to produce naltrexone is not significant.. Systemic exposure of methylnaltrexone metabolites after oral administration of a ...
https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=c488fb7c-0a5b-487c-b452-996809d1cb99
Antibacterial and adsorption characteristics of activated carbon functionalized with quaternary ammonium moieties | ScholarBank...Antibacterial and adsorption characteristics of activated carbon functionalized with quaternary ammonium moieties | ScholarBank...
Activated carbon (AC) was functionalized with two types of quaternary ammonium groups to achieve antibacterial properties. The first route utilized covalently coupled 3-(trimethoxysilyl)propyldimethyloctadecylammonium chloride (QAS) on the AC surface, while the second route employed a polycation, poly(vinyl-N-hexylpyridinium bromide). The successful attachment of these two types of quaternary ammonium was indicated by X-ray photoelectron spectroscopy (XPS) analysis. Both types of functionalized ACs show highly effective antibacterial activities against Escherichia coli and Staphylococcus aureus. Furthermore, the functionalized ACs can be used in repeated antibacterial applications with little loss in efficacy. Using phenol as a model compound, the adsorption capacity of the different ACs was also investigated. The different degrees of decrease in the adsorptive capacity of the two types of functionalized ACs can be related to the changes in the surface area and pore size distribution arising ...
https://scholarbank.nus.edu.sg/handle/10635/63486
Reversible hemostatic properties of sulfabetaine/quaternary ammonium modified hyperbranched polyglycerol • Weinhart Group •...Reversible hemostatic properties of sulfabetaine/quaternary ammonium modified hyperbranched polyglycerol • Weinhart Group •...
A library of hyperbranched polyglycerols (HPGs) functionalized with different mole fractions of zwitterionic sulfabetaine and cationic quaternary ammonium ligands was synthesized and characterized. A post-polymerization method was employed that utilized double bond moieties on the dendritic HPG for the coupling of thiol-terminated ligands via UV initiated thiol-ene click chemistry. The proportions of different ligands were precisely controlled by varying the ligand concentration during the irradiation process. The effect of the polymer library on hemostasis was investigated using whole human blood. It was found that polymer with ≥40% of alkenes converted to positive charges and the remainder to sulfabetaines caused hemagglutination at ≥1 mg/mL, without causing red blood cell lysis. The quaternary ammonium groups can interact with the negative charged sites on the membranes of erythrocytes, which provides the bioadhesion. The zwitterionic sulfabetaine evidently provides a hydration layer to ...
http://www.bcp.fu-berlin.de/en/chemie/chemie/forschung/OrgChem/weinhart/publications/pub019/index.html
Immunogenicity of Staphylococcus Aureus Antigens Against Experimentally Induced Mastitis in the Mouse and Optimization of...Immunogenicity of Staphylococcus Aureus Antigens Against Experimentally Induced Mastitis in the Mouse and Optimization of...
Capsular antigens of Staphylococcus aureus Smith and 2-8 strains were evaluated for immunogenicity in mice. Cultural conditions necessary for maximum expression of the antigens were also defined. Actively growing S. aureus Smith strain culture was used to challenge lactating GF-1 strain mice which had been vaccinated with various capsule antigen preparations. Capsule antigen production was evaluated using shaker flask and fermenter cultures. Immunogenicity evaluations using single vaccinations showed that semi-purified capsule preparations elicited a protective response against challenge. Mice vaccinated twice showed that oil and aluminum hydroxide adjuvanted capsule antigens protected against challenge, but DDA (dimethyldioctadecylammonium bromide) adjuvanted capsule antigens resulted in more mastitis than non-vaccinated controls. Cultural evaluations showed that media high in nitrogen and carbohydrate content and grown at pH 5.5 resulted in the greatest amount of capsule antigen ...
http://escholarshare.drake.edu/handle/2092/643?show=full
5L CLEANSAN Liquid Hand Detergent | Disinfectant with QAC - Medical Distributors South Africa5L CLEANSAN Liquid Hand Detergent | Disinfectant with QAC - Medical Distributors South Africa
*If you are looking for bulk quantity of this product (50 + units), please contact us directly [email protected] and our sales team we will be in contact with you.* Cleansan is a liquid type disinfectant that contains QAC (quaternary ammonium compounds). QAC is a powerful disinfectant commonly found in disinfectant wi
https://medicaldistributors.co.za/products/liquid-hand-detergent-disinfectant
Sugar Process Decolorant Quaternary Ammonium Polymer 50% Solid Content Cationic Polyeletrolyte - waterpurifyingchemicals images
Sugar Process Decolorant Quaternary Ammonium Polymer 50% Solid Content Cationic Polyeletrolyte Images - buy direct from Quaternary Ammonium Polymer of waterpurifyingchemicals - China Wholesale Factory.
http://waterpurifyingchemicals.sale.spintoband.com/iz6dd73b1-sugar-process-decolorant-quaternary-ammonium-polymer-50-solid-content-cationic-polyeletrolyte-images
Chemical Summary for Alkyl* dimethyl ethylbenzyl ammonium chloride *(60%C14, 30%C16, 5%C12, 5%C18)Chemical Summary for Alkyl* dimethyl ethylbenzyl ammonium chloride *(60%C14, 30%C16, 5%C12, 5%C18)
US EPA PC Code ); 069167 (US EPA PC Code Text ); 68956-79-6 (CAS number); 68956796; 68956796 (CAS number without hyphens); Alkyl* dimethyl ethylbenzyl ammonium chloride *(60%C14, 30%C16, 5%C12, 5%C18); Alkyl*dimethylethylbenzylammoniumchloride*60%C1430%C165%C125%C18; Quaternary ammonium compounds, C12-18-alkyl((ethylphenyl)methyl)dimethyl, ...
http://www.pesticideinfo.org/Summary_Chemical.jsp?Rec_Id=PC37036
Nomination Summary for Benzyltrimethyl ammonium chloride (N88304)Nomination Summary for Benzyltrimethyl ammonium chloride (N88304)
Nominated Substances: Benzyltrimethyl ammonium chloride. Nomination Date: 12/22/1987 Nominator: NIEHS Rationale: High production, potential for exposure, lack of toxicity data, structural interest in quaternary ammonium compounds. NTP Principles: Pre 1993 - 3, 8 Status: Selected ...
https://ntp.niehs.nih.gov/testing/noms/search/summary/nm-n88304.html
Disinfectants - Better BananasDisinfectants - Better Bananas
It is important to note that soil reduces the effectiveness of disinfectants. Different soil types have varying impacts on the effectiveness of the products. However, research has shown that once the equivalent of 1g of soil is present in 20mL of solution (1% product) then the effectiveness of products is compromised or reduced. Investigations into DDAC products (e.g. Steri-maX®, Path-X™, Sporekill® made at 1% solution) has found that when there is no soil contamination, these products remain effective as a disinfectant after being exposed to sunlight, temperature and humidity for up to 12 months. Quaternary ammonium compound test strips have shown to be an effective tool that measures the concentration of the active ingredient DDAC or BZK in disinfectant products. These easy-to-use test strips do not require dilution of the sample and are used by comparing the colour development on the test strip to the colour scale. ...
https://betterbananas.com.au/2019/03/14/disinfectants/
Water | Free Full-Text | Cometabolism of the Superphylum Patescibacteria with Anammox Bacteria in a Long-Term Freshwater...Water | Free Full-Text | Cometabolism of the Superphylum Patescibacteria with Anammox Bacteria in a Long-Term Freshwater...
Although the anaerobic ammonium oxidation (anammox) process has attracted attention regarding its application in ammonia wastewater treatment based on its efficiency, the physiological characteristics of anammox bacteria remain unclear because of the lack of pure-culture representatives. The coexistence of heterotrophic bacteria has often been observed in anammox reactors, even in those fed with synthetic inorganic nutrient medium. In this study, we recovered 37 draft genome bins from a long-term-operated anammox column reactor and predicted the metabolic pathway of coexisting bacteria, especially Patescibacteria (also known as Candidate phyla radiation). Genes related to the nitrogen cycle were not detected in Patescibacterial bins, whereas nitrite, nitrate, and nitrous oxide-related genes were identified in most of the other bacteria. The pathway predicted for Patescibacteria suggests the lack of nitrogen marker genes and its ability to utilize poly-N-acetylglucosamine produced by dominant anammox
https://www.mdpi.com/2073-4441/13/2/208?utm_campaign=releaseissue_waterutm_medium=emailutm_source=releaseissueutm_term=titlelink56
Characterization of cationic lipid DNA transfection complexes differing in susceptability to serum inhibition | BMC...Characterization of cationic lipid DNA transfection complexes differing in susceptability to serum inhibition | BMC...
Cationic lipid DNA complexes based on DOTAP (1,2-dioleoyl-3-(trimethyammonium) propane) and mixtures of DOTAP and cholesterol (DC) have been previously optimized for transfection efficiency in the absence of serum and used as a non-viral gene delivery system. To determine whether DOTAP and DC lipid DNA complexes could be obtained with increased transfection effciency in the presence of high serum concentrations, the composition of the complexes was varied systematically and a total of 162 different complexes were analyzed for transfection efficiency in the presence and absence of high serum concentrations. Increasing the ratio of DOTAP or DC to DNA led to a dose dependent enhancement of transfection efficiency in the presence of high serum concentrations up to a ratio of approximately 128 nmol lipid/μg DNA. Transfection efficiency could be further increased for all ratios of DOTAP and DC to DNA by addition of the DNA condensing agent protamine sulfate (PS). For DOTAP DNA complexes with ratios of ≤ 32
https://bmcbiotechnol.biomedcentral.com/articles/10.1186/1472-6750-2-12/figures/6
Clinell Universal Disinfectant Spray - 500ml BottleClinell Universal Disinfectant Spray - 500ml Bottle
Kills at least 99.999% of all germs including MRSA. Clinell Universal Disinfectant Spray provide a single, universal product to disinfect and clean, surfaces and equipment. Containing a unique, patented antimicrobial formula they can be used as a disinfectant and detergent spray - replacing the need for multiple surface cleaners. The Clinell Disinfectant Spray is designed for sanitising areas that are hard to reach with wipes. Proven to kill at least 99.999% of germs - Clinell Universal Wipes are one of the most effective antimicrobial products on the market. This revolutionary formula contains 6 different biocides. Each biocide acts with a different mechanism of action, reducing the risk of germs developing resistance. Powerful, patented biocidal formulation, based on a synergistic mix of quaternary ammonium compounds and a polymeric biguanide each with a completely different mechanism of action. This ensures the widest spectrum of activity whilst mediating against resistance.
https://www.spservices.co.uk/item/Clinell_ClinellUniversalDisinfectantSpray-500ml_211_87_2903_1.html
Clinell Universal Disinfectant Spray - 500ml BottleClinell Universal Disinfectant Spray - 500ml Bottle
Kills at least 99.999% of all germs including MRSA. Clinell Universal Disinfectant Spray provide a single, universal product to disinfect and clean, surfaces and equipment. Containing a unique, patented antimicrobial formula they can be used as a disinfectant and detergent spray - replacing the need for multiple surface cleaners. The Clinell Disinfectant Spray is designed for sanitising areas that are hard to reach with wipes. Proven to kill at least 99.999% of germs - Clinell Universal Wipes are one of the most effective antimicrobial products on the market. This revolutionary formula contains 6 different biocides. Each biocide acts with a different mechanism of action, reducing the risk of germs developing resistance. Powerful, patented biocidal formulation, based on a synergistic mix of quaternary ammonium compounds and a polymeric biguanide each with a completely different mechanism of action. This ensures the widest spectrum of activity whilst mediating against resistance.
https://www.spservices.co.uk/item/Clinell_ClinellUniversalDisinfectantSpray-500ml_31_87_2903_1.html
DISINFECTANT HOSPITAL GRADE | SYDNEY CLEANING SUPPLIES | Sydney Cleaning SuppliesDISINFECTANT HOSPITAL GRADE | SYDNEY CLEANING SUPPLIES | Sydney Cleaning Supplies
Disinfectant - Hospital Grade is a blue liquid with a pleasant eucalyptus fragrance, which deodorises, cleans and disinfects in one action. It contains 50g/L concentrated quaternary ammonium compound that kills most of common bacteria at the dilution.
https://www.sydneycleaningsupplies.com.au/disinfectant-hospital-grade.html/
Econo 705 - Discount pine fragranced disinfectant germicide antisepctic cleaner - CYNDAN ChemicalsEcono 705 - Discount pine fragranced disinfectant germicide antisepctic cleaner - CYNDAN Chemicals
Cyndan Econo 705 is a refined quaternary ammonium compound disinfectant and germicide antiseptic cleaner, with pine fragranced and great economy.
https://cyndan.com.au/en/econo-discount-chemicals/263-econo-705-discount-pine-fragranced-disinfectant-germicide-antisepctic-cleaner.html
Home Disinfection Service in Honolulu & BeyondHome Disinfection Service in Honolulu & Beyond
According to a study from 2018, hydrogen peroxide has proven to be more effective than quaternary ammonium compounds at destroying certain types of bacteria. At Maid in Oahu, we have devised an approach that improves upon the efficacy of hydrogen peroxide even further in order to provide high-level disinfection to home and business owners across Oahu.. The hydrogen peroxide + silver ion solution we used in the home disinfection services we match you with has an incredibly high kill rate and even prolongs the kill time after the process is complete thanks to the silver ions. The solution has been scientifically proven to eradicate 99.9999% of bacteria (including MRSA), viruses (flu and coronavirus), as well as mold, fungi, and most airborne pathogens efficiently and effectively.. ...
https://maidinoahu.com/home-commercial-disinfection-services
SolutionsSolutions
Ranes Disinfectant Solution is a lemon-scented quaternary ammonium compound that is effective against a wide variety of microorganisms including H1N1 Influenza A virus, TB, MRSA, Hepatitis B/C, VISA, VRE, HIV-1, and pathogenic fungi. Our disinfectant solution is concentrated and cleans at a dilution ratio of 2 oz. of disinfectant solution to 1-gallon of water. Available in 1-gallon bottle, 4 one-gallon bottles per case.. ...
http://www.ranetubs.com/product_category/solutions/
Centrimonium ChlorideCentrimonium Chloride
Cetrimonium Chloride is a quaternary ammonium compound with the following functions...|br/| |br| Antistatic Agent, Cosmetic Biocide, Emulsifying agent and Surfactant, Antimicrobial, Preservative.|br/| |br| INCI: Cetrimonium Chloride.|br/| |br| T
https://www.thesoapkitchen.co.uk/centrimonium-chloride-cetchlor
Brevet US4006218 - Potentiated medicaments - Google BrevetsBrevet US4006218 - Potentiated medicaments - Google Brevets
Antimicrobial compositions are provided wherein there is obtained an enhancement of the activity of an antimicrobial agent exemplified by quaternary ammonium compounds, bisdiguanides, anti-fungal agents, phenols, hydroxydiphenyls, carbanilides, salicylanilides, organo-metalic antiseptics, antibiotics, halogens, organic halogen derivatives and iodophores derived from nonionic surface active agents and from polyvinylpyrrolidone by combining the antimicrobial agent with an effective amount of a potentiator. The potentiator is an alcohol or phenol derivative selected from the group consisting of (a) aliphatic straight or branched chain primary, secondary and tertiary monohydric alcohols wherein the straight chain alcohols have from about 5 to about 10 carbon atoms; and the branched chain alcohols have up to about 17 carbon atoms, their longest straight chain of carbon to carbon bonds having from about 5 to about 10 carbon atoms; (b) a primary, secondary or tertiary cyclohexylalkanol or
http://www.google.fr/patents/US4006218
DEEP EUTECTIC SOLVENTS AND APPLICATIONS - SHRIEVE CHEMICAL PRODUCTS, INC.DEEP EUTECTIC SOLVENTS AND APPLICATIONS - SHRIEVE CHEMICAL PRODUCTS, INC.
A method of solubilizing/removing cellulose or chemically-modified cellulosic polymers utilized in subterranean drilling operations such as fracturing. The method involves introducing a deep eutectic solvent (DES) into a subterranean region. Deep eutectic solvents useful as cellulose solvents include quaternary ammonium compounds, including choline chloride and chlorcholine chloride, reacted with a compound selected from amides, amines, carboxylic acids alcohols, and metal halides. The DES material can be pumped downhole after fracturing operations to remove cellulosic material used, for example, to thicken fracturing fluid which is left behind in the created fractures, on the face of the formation, along the wellbore, or elsewhere within the subterranean region. The DES can be used alone or in a sequential treatment protocol, whereby the DES is introduced into the subterranean region, followed by post-treatment introduction of water, caustic, acid or anhydride into the subterranean as a flush.
http://www.sumobrain.com/patents/wipo/Deep-eutectic-solvents-applications/WO2009120839.html
The Hand is Quicker Than the Sneeze | Patient Safety BlogThe Hand is Quicker Than the Sneeze | Patient Safety Blog
To study the spread of viruses within a building, researchers contaminated a variety of surfaces in several different buildings with a benign virus that lives and multiplies within bacteria to use as a tracer. The particular virus used was bacteriophage MS-2, which is similar to noroviruses which are a common cause of the stomach flu.. After some time had passed, researchers sampled surfaces that can harbor infectious organisms, such a light switches and faucet handles, to see how far the planted virus had spread. What they found was that the virus had spread to a majority of commonly touched surfaces after just two to four hours. They also found that the bathroom wasnt the worst offender; the break room was the most contaminated location. (Just think how many people touch the coffee pot handle!). The study also included an intervention phase where cleaning personal and employees were provided with quaternary ammonium compounds (QUATS) disinfectant containing wipes and instructed on proper use ...
http://www.patient-safety-blog.com/2014/09/18/the-hand-is-quicker-than-the-sneeze/
Gastrointestinal transit rate-related absorption of emepronium: a study in mice. - Semantic ScholarGastrointestinal transit rate-related absorption of emepronium: a study in mice. - Semantic Scholar
The gastrointestinal (GI) absorption in mice of the anticholinergic quaternary ammonium compound emepronium, assessed by the urinary excretion of radioactivity and unchanged drug, increased from 1% to 7% and from 0.5% to 5%, respectively, in the dose range 0.1 to 40 mg/kg, whereafter a plateau was reached. Changes in the metabolism were evident at doses exceeding 80 mg/kg when 80% of the radioactivity was excreted as unchanged emepronium, as compared to 50% at lower doses. No dose-dependent urinary excretion of radioactivity was detected following intravenous injection. The increase in the fraction of the dose excreted in the urine after oral administration therefore cannot be easily explained by a dose-dependent metabolism or renal excretion. However, a relationship was seen between the reduced gastrointestinal motility, produced by increasing doses of the drug, and the increased bioavailability. Atropine sulphate given subcutaneously (1-50 mg/kg) more than doubled the urinary recovery of a small
https://www.semanticscholar.org/paper/Gastrointestinal-transit-rate-related-absorption-o-Hall%C3%A9n-Sundwall/fd8997af409c0e803b1ae3ff6192636aaf8e0c69
Avicenna Journal of Clinical Microbiology and Infection - Prevalence of Antibiotic Resistance and Class 1 Integrons in Clinical...Avicenna Journal of Clinical Microbiology and Infection - Prevalence of Antibiotic Resistance and Class 1 Integrons in Clinical...
Integrons are the moving agents that can be located in plasmids, chromosomes, or transposons (6). These agents, similar to plasmid and transposons, play an important role in the development of multiple drug resistances. Nowadays, more than 21 different gene cassettes are recognized that are capable of providing the prerequisites needed to become resistant to antibiotics such as aminoglycosides, penicillin, cephalosporin, carbapenems, trimethoprim, chloramphenicol, rifampin, erythromycin and the quaternary ammonium compounds. Furthermore, it was reported by many studies that integrons containing more than 1 gene cassette enable the carrying bacteria to develop multi drug resistances (21). Among the discovered integrons, class 1 integrons are the most prevalent and the most important ones to transfer drug resistant genes.. The current study aimed at investigating the antimicrobial resistance pattern of P. aeruginosa strains isolated from clinical and environmental specimens. Among the 150 P. ...
http://ajcmicrob.com/en/articles/12086.html
Quaternary ammonium cationQuaternary ammonium cation
Quaternary ammonium salts or quaternary ammonium compounds (called quaternary amines in oilfield parlance) are salts of ... Quaternary ammonium compounds have antimicrobial activity. Quaternary ammonium compounds, especially those containing long ... quaternary ammonium compounds are believed to act by disrupting the cell membrane or viral envelope. Quaternary ammonium ... Unlike the ammonium ion (NH+4) and the primary, secondary, or tertiary ammonium cations, the quaternary ammonium cations are ...
https://en.wikipedia.org/wiki/Quaternary_ammonium_cation
TetramethylammoniumTetramethylammonium
Neef, C.; Oosting, R.; Meijer, D. K. F (1984). "Structure-pharmacokinetics relationship of quaternary ammonium compounds". ... Banus, M. D.; Bragdon, R. W.; Gibb, T. R. P. (1952). "Preparation of quaternary ammonium borohydrides from sodium and lithium ... TMA salts do possess some of the phase-transfer catalytic properties that are characteristic of quaternary ammonium compounds, ... Burn, J. H.; Dale, H. H. (1915). "The action of certain quaternary ammonium bases". J. Pharmacol. Exp. Ther. 6: 417-438. ...
https://en.wikipedia.org/wiki/Tetramethylammonium
Quaternary compoundQuaternary compound
The best-known quaternary compounds are quaternary ammonium salts, having a nitrogen atom at the centre. For example, in the ... In chemistry, a quaternary compound is a compound consisting of exactly four chemical elements. In another use of the term in ... the "Gold Book") (1997). Online corrected version: (2006-) "Quaternary ammonium compounds". doi:10.1351/goldbook.Q05003 Ren, Z ... Binary compound Ternary compound Onium ion Quaternary phase IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book ...
https://en.wikipedia.org/wiki/Quaternary_compound
FoulingFouling
Also applied are dibrom nitrilopropionamide and quaternary ammonium compounds. For underwater ship hulls bottom paints are ... inorganic chlorine and bromide compounds, chlorine and bromide cleavers, ozone and oxygen cleavers, unoxidizable biocides. One ...
https://en.wikipedia.org/wiki/Fouling
AgelasineAgelasine
Quaternary ammonium compounds, Diterpene alkaloids, Purines). ... All compounds carry a diterpenoid side chain in the adenine 7- ...
https://en.wikipedia.org/wiki/Agelasine
Rabbit hemorrhagic diseaseRabbit hemorrhagic disease
Studies have show that many quaternary ammonium compound based disinfectants do not inactivate caliciviruses. Because of the ... 1995). "Virucidal efficacy of the newer quaternary ammonium compounds". Journal of the American Animal Hospital Association. 31 ... Resistance to RHD in New Zealand rabbits has led to the widespread use of Compound 1080 (Sodium fluoroacetate). The government ...
https://en.wikipedia.org/wiki/Rabbit_hemorrhagic_disease
Antimicrobial surfaceAntimicrobial surface
The quaternary ammonium compound Dimethyloctadecyl (3-trimethoxysilyl propyl) ammonium chloride (Si-QAC) has been found to have ... Many other quaternary ammonium compounds are known to have antimicrobial properties (e.g. alkyldimethylbenzylammonium chloride ... Ioannou CJ, Hanlon GW, Denyer SP (January 2007). "Action of disinfectant quaternary ammonium compounds against Staphylococcus ... Quaternary ammonium ion-containing polymers (PQA) have been proven to effectively kill cells and spores through their ...
https://en.wikipedia.org/wiki/Antimicrobial_surface
TrimethylglycineTrimethylglycine
Rhodes, D.; Hanson, A. D. (1993). "Quaternary Ammonium and Tertiary Sulfonium Compounds in Higher Plants". Annual Review of ... It is a zwitterion as the molecule contains both a quaternary ammonium group and a carboxyl group. The carboxyl group will be ... The major step in the methylation cycle is the remethylation of homocysteine, a compound which is naturally generated during ... Addition reactions of heterocyclic compounds. Part II. Phenanthridine and methyl acetylenedicarboxylate in methanol". J. Chem. ...
https://en.wikipedia.org/wiki/Trimethylglycine
PhenoxyethanolPhenoxyethanol
It is often used together with quaternary ammonium compounds. Phenoxyethanol is used as a perfume fixative; an insect repellent ... Phenoxyethanol is the organic compound with the formula C6H5OC2H4OH. It is a colorless oily liquid. It can be classified as a ...
https://en.wikipedia.org/wiki/Phenoxyethanol
ToxicantToxicant
Non-oxidized toxicants include isothiazolinones and quaternary ammonium compounds. An intoxicant is a substance that ...
https://en.wikipedia.org/wiki/Toxicant
Choline m-bromophenyl etherCholine m-bromophenyl ether
Quaternary ammonium compounds, All stub articles, Organic compound stubs). ... WILLEY, GL (December 1955). "Stimulant activities of quaternary ammonium compounds on mammalian skeletal muscle". British ...
https://en.wikipedia.org/wiki/Choline_m-bromophenyl_ether
Quinoline methiodideQuinoline methiodide
Quaternary ammonium compounds, Iodides, All stub articles, Heterocyclic compound stubs). ... Quaternary ammonium compound Stockman, R (September 1893). "The Physiological Action of Quinoline, Isoquinoline and some of ... Quinoline methiodide is a quaternary ammonium compound produced by reaction of quinoline with methyl iodide. It has paralyzing ...
https://en.wikipedia.org/wiki/Quinoline_methiodide
Glycopyrronium bromideGlycopyrronium bromide
It is a synthetic quaternary ammonium compound. The cation, which is the active moiety, is called glycopyrronium (INN) or ... Quaternary ammonium compounds, Pyrrolidines, Tertiary alcohols, Carboxylate esters, Peripherally selective drugs, ...
https://en.wikipedia.org/wiki/Glycopyrronium_bromide
Chemical toiletChemical toilet
Milder forms include ethanol and quaternary ammonium compounds in low concentration. A formaldehyde based chemical was used for ...
https://en.wikipedia.org/wiki/Chemical_toilet
NutrientNutrient
The cholines are a family of water-soluble quaternary ammonium compounds. Choline is the parent compound of the cholines class ... Nutrients may be organic or inorganic: organic compounds include most compounds containing carbon, while all other chemicals ... Vitamins are organic compounds essential to the body. They usually act as coenzymes or cofactors for various proteins in the ... The chemical compounds that humans consume in the largest quantities and provide bulk energy are classified as carbohydrates, ...
https://en.wikipedia.org/wiki/Nutrient
Geodia barrettiGeodia barretti
"Characterization and quantitative estimation of quaternary ammonium compounds in marine demosponges". Comparative Biochemistry ... Using metabolomics on specimens of G. barretti from Sweden, most of these compounds could be found, in addition to nucleotides ... This bacterium's genome was fully sequenced (Genbank accession numbers CP016077-plasmid CP016078). The major compound of G. ... Biologically Active Compounds from the Marine Sponge Geodia baretti". Journal of Natural Products. 51 (6): 1277-1280. doi: ...
https://en.wikipedia.org/wiki/Geodia_barretti
CholineCholine
The cholines are a family of water-soluble quaternary ammonium compounds. Choline is the parent compound of the cholines class ... The compound now known as neurine is unrelated to choline. In the early 1930s, Charles Best and colleagues noted that fatty ... Zeisel SH, Mar MH, Howe JC, Holden JM (May 2003). "Concentrations of choline-containing compounds and betaine in common foods ... Diethanolamine is another such compound, but also an environmental pollutant. N-cyclohexylcholine inhibits choline uptake ...
https://en.wikipedia.org/wiki/Choline
Dimethylcarbamoyl chlorideDimethylcarbamoyl chloride
... and the related compounds isolane, pirimicarb and triazamate. The quaternary ammonium compounds neostigmine finds ...
https://en.wikipedia.org/wiki/Dimethylcarbamoyl_chloride
Araxie BabayanAraxie Babayan
Babayan's main research was devoted to amines and quaternary ammonium compounds. She established a number of new laws in the ... chemistry of quaternary ammonium compounds. Babayan proposed a method for synthesizing acetylene glycols, known in the chemical ... In 1953, she discovered the catalytic action of ammonium salts for the alkylation reaction of organic acids. In 1955-1957 ... Babayan was a head of the organic chemistry sector and from 1957 to 1993 head of the laboratory of the amino compounds of ...
https://en.wikipedia.org/wiki/Araxie_Babayan
Gerhard DomagkGerhard Domagk
Bureš, Filip (2019). "Quaternary Ammonium Compounds: Simple in Structure, Complex in Application". Topics in Current Chemistry ... Rahn, Otto; Van Eseltine, William P. (1947). "Quaternary ammonium compounds". Annual Review of Microbiology. 1 (1): 173-192. ... Zubris, Deanna L.; Minbiole, Kevin P. C.; Wuest, William M. (2017). "Polymeric Quaternary Ammonium Compounds: Versatile ... His duty was to test chemical compounds prepared at the IG Farben laboratory for potential drugs. A novel compound synthesised ...
https://en.wikipedia.org/wiki/Gerhard_Domagk
PeltigeraPeltigera
"Distribution of new quaternary ammonium compounds, solorinine and peltigerine, in the peltigerales". Bryologist. 102 (2): 196- ... Peltigera leucophlebia contains the compounds tenuiorin and methyl orsellinate, which are inhibitory to the enzyme 15- ...
https://en.wikipedia.org/wiki/Peltigera
SurfactantSurfactant
The toxicity of quaternary ammonium compounds, which are antibacterial and antifungal, varies. Dialkyldimethylammonium ... The cationic part is based on primary, secondary, or tertiary amines or quaternary ammonium cations. The anionic part can be ... Permanently charged quaternary ammonium salts: cetrimonium bromide (CTAB), cetylpyridinium chloride (CPC), benzalkonium ... Surfactants are chemical compounds that decrease the surface tension between two liquids, between a gas and a liquid, or ...
https://en.wikipedia.org/wiki/Surfactant
MethiodideMethiodide
v t e (Quaternary ammonium compounds, All stub articles, Organic chemistry stubs). ... In organic chemistry, a methiodide is a chemical derivative produced by the reaction of a compound with methyl iodide. ...
https://en.wikipedia.org/wiki/Methiodide
3-Dehydrocarnitine3-Dehydrocarnitine
v t e (Ketones, Quaternary ammonium compounds, All stub articles, Biochemistry stubs). ... 3-Dehydrocarnitine is an aliphatic quaternary ammonium betaine that is part of the carnitine family. The major species of 3- ... 3-Dehydrocarnitine is part of the short-chain keto acids and derivatives class of organic compounds, as it has a carbon chain ...
https://en.wikipedia.org/wiki/3-Dehydrocarnitine
Carbon-11-cholineCarbon-11-choline
Quaternary ammonium compounds, 3D nuclear medical imaging, Medical physics, Positron emission tomography). ...
https://en.wikipedia.org/wiki/Carbon-11-choline
Antimicrobial polymerAntimicrobial polymer
... and cetrimonium are all quaternary ammonium compounds containing nitrogen. The antibacterial activity of these compounds is ... Polymer quaternary ammonium compounds containing nitrogen induce cell death through electrostatic interactions and the ... Optimal antimicrobial activity is generally seen in quaternary ammonium compounds with a long chain length, containing 8-18 ... Polymers with inherent antimicrobial activity include chitosan, poly‐ε‐lysine, quaternary ammonium compounds, polyethylenimine ...
https://en.wikipedia.org/wiki/Antimicrobial_polymer
Gil Martins FelippeGil Martins Felippe
Effects of a quaternary ammonium compound and gibberellic acid on the growth of Phaseolus. Ph.D. Thesis. University of ... Felippe, Gil Martins (1967). "Effects of a quaternary ammonium compound and gibberellic acid on the growth of Phaseolus". {{ ...
https://en.wikipedia.org/wiki/Gil_Martins_Felippe
Oil dispersantsOil dispersants
Many of these compounds are quaternary ammonium salts, as well as cetrimonium bromide (CTAB). Non-ionic surfactants are non- ... In general, compounds with an HLB between one and four will not mix with water. Compounds with an HLB value above 13 will form ... These compounds have both positively and negatively charged components. An example of a zwitterionic compound is ... Compounds which interact too harshly with oil dispersants should be tested to ensure that they meet three criteria: They should ...
https://en.wikipedia.org/wiki/Oil_dispersants
DisinfectantDisinfectant
Quaternary ammonium compounds ("quats"), such as benzalkonium chloride, are a large group of related compounds. Some ... Alcohol and alcohol plus Quaternary ammonium cation based compounds comprise a class of proven surface sanitizers and ... "In vitro Antifungal Efficacy of Biguanides and Quaternary Ammonium Compounds against Cleanroom Fungal Isolates". PDA J Pharm ... Quaternary ammonia at or above 200ppm plus alcohol solutions exhibit efficacy against difficult to kill non-enveloped viruses ...
https://en.wikipedia.org/wiki/Disinfectant
Infectious canine hepatitisInfectious canine hepatitis
CAV-1 is destroyed in the environment by steam cleaning and quaternary ammonium compounds. Otherwise, the virus can survive in ...
https://en.wikipedia.org/wiki/Infectious_canine_hepatitis
NorovirusNorovirus
Jimenez L, Chiang M (2006). "Virucidal activity of a quaternary ammonium compound disinfectant against feline calicivirus: a ... care environments where medical electronics would be adversely affected by aerosolized chlorine or other caustic compounds. In ...
https://en.wikipedia.org/wiki/Norovirus
Nikolai MenshutkinNikolai Menshutkin
... was a Russian chemist who discovered the process of converting a tertiary amine to a quaternary ammonium salt via the reaction ... Between 1889 and 1895 Menshutkin focused on amines, on the kinetics of their interaction with alkyl halogen compounds and its ... In 1890 Menshutkin discovered that a tertiary amine can be converted into a quaternary ammonium salt by reaction with an alkyl ... March 1866 against Aleksandr Butlerov and Dmitri Mendeleev and in autumn began teaching a course on organic nitrogen compounds ...
https://en.wikipedia.org/wiki/Nikolai_Menshutkin
DimethylanilineDimethylaniline
Methylating agents attack the amine to give the quaternary ammonium salt: C6H5N(CH3)2 + (CH3O)2SO2 → C6H5N(CH3)3CH3OSO3 DMA is ... DMA is also used as a precursor to other organic compounds. A study of the in vitro metabolism of N,N-dimethylaniline using ... N,N-Dimethylaniline (DMA) is an organic chemical compound, a substituted derivative of aniline. It consists of a tertiary amine ...
https://en.wikipedia.org/wiki/Dimethylaniline
MeldoniumMeldonium
Quaternary ammonium compounds, Soviet inventions, Zwitterions, World Anti-Doping Agency prohibited substances, Doping in Russia ... "Ivars Kalvins: A broad range of medicines based on natural compounds, spearheading a new generation of drugs". European ... "Evidence is lacking for many compounds believed to enhance athletic performance. Its use has a sort of urban legend element and ...
https://en.wikipedia.org/wiki/Meldonium
Ethyl GreenEthyl Green
Quaternary ammonium compounds, All stub articles, Antiinfective agent stubs). ...
https://en.wikipedia.org/wiki/Ethyl_Green
Bacterial cold water diseaseBacterial cold water disease
Quaternary ammonium compounds can be added to the water of infected adult fish and fry. Alternatively, the antibiotic ...
https://en.wikipedia.org/wiki/Bacterial_cold_water_disease
Syncrude Tailings DamSyncrude Tailings Dam
... quaternary ammonium compounds, and alkylphenol ethoxylates)." By 2012 Syncrude Canada Ltd had oilsands mining operations on ...
https://en.wikipedia.org/wiki/Syncrude_Tailings_Dam
Maralixibat chlorideMaralixibat chloride
Heterocyclic compounds with 2 rings, Sulfur heterocycles, Nitrogen heterocycles, Quaternary ammonium compounds, Tertiary amines ...
https://en.wikipedia.org/wiki/Maralixibat_chloride
Ice coreIce core
Walker, Mike (2005). Quaternary Dating Methods (PDF). Chichester: John Wiley & Sons. p. 150. ISBN 978-0-470-86927-7. Archived ... Some species, such as calcium and ammonium, show strong seasonal variation. In some cases there are contributions from more ... alcohol compounds, including aqueous ethylene glycol and ethanol solutions; and esters, including n-butyl acetate. Newer fluids ... Ruddiman, William F.; Raymo, Maureen E. (2003). "A methane-based time scale for Vostok ice" (PDF). Quaternary Science Reviews. ...
https://en.wikipedia.org/wiki/Ice_core
BevoniumBevonium
Quaternary ammonium compounds, Piperidines, Tertiary alcohols, All stub articles, Gastrointestinal system drug stubs). ...
https://en.wikipedia.org/wiki/Bevonium
Pharmaceutical industryPharmaceutical industry
Early developments in the field of treating hypertension included quaternary ammonium ion sympathetic nervous system blocking ... A structurally similar compound, ephedrine, was identified by Japanese chemists in the Ma Huang plant and marketed by Eli Lilly ... This work, also based in the testing of compounds available from the German dye industry, led to the development of Prontosil, ... Arsphenamine was prepared as part of a campaign to synthesize a series of such compounds and found to exhibit partially ...
https://en.wikipedia.org/wiki/Pharmaceutical_industry
TMTFATMTFA
Quaternary ammonium compounds, Aromatic ketones, Trifluoromethyl ketones, Acetophenones, All stub articles, Ketone stubs). ... v t e (Articles with short description, Short description matches Wikidata, Chemical articles with multiple compound IDs, ...
https://en.wikipedia.org/wiki/TMTFA
Tetraoctylammonium bromideTetraoctylammonium bromide
Quaternary ammonium compounds, All stub articles, Organic compound stubs). ... Tetraoctylammonium bromide (TOAB or TOABr) is a quaternary ammonium compound with the chemical formula: [CH3(CH2)7]4N Br. It is ...
https://en.wikipedia.org/wiki/Tetraoctylammonium_bromide
Ionic liquidIonic liquid
Conventional quaternary ammonium cations also form ILs, e.g. tetraethylammonium (TEA) and tetrabutylammonium (TBA). Typical ... Examples include compounds based on the 1-ethyl-3-methylimidazolium (EMIM) cation and include: EMIM:Cl, EMIMAc (acetate anion ... Saturated aliphatic compounds are generally only sparingly soluble in ionic liquids, whereas alkenes show somewhat greater ... They offer the specificity required to separate similar compounds from each other, such as separating polymers in plastic waste ...
https://en.wikipedia.org/wiki/Ionic_liquid
PenthienatePenthienate
Quaternary ammonium compounds, Carboxylate esters, Cyclopentyl compounds, All stub articles, Gastrointestinal system drug stubs ...
https://en.wikipedia.org/wiki/Penthienate
FosnetupitantFosnetupitant
Trifluoromethyl compounds, Piperazines, Pyridines, Quaternary ammonium compounds, 2-Tolyl compounds, All stub articles, ...
https://en.wikipedia.org/wiki/Fosnetupitant
EdrophoniumEdrophonium
Quaternary ammonium compounds). ...
https://en.wikipedia.org/wiki/Edrophonium
TridihexethylTridihexethyl
Quaternary ammonium compounds, Tertiary alcohols, All stub articles, Gastrointestinal system drug stubs). ...
https://en.wikipedia.org/wiki/Tridihexethyl
PolyquaterniumPolyquaternium
Quaternary ammonium compounds, All stub articles, Polymer stubs). ... Polyquaternium is a neologism used to emphasize the presence of quaternary ammonium centers in the polymer. INCI has approved ...
https://en.wikipedia.org/wiki/Polyquaternium
Guar hydroxypropyltrimonium chlorideGuar hydroxypropyltrimonium chloride
... is an organic compound that is a water-soluble quaternary ammonium derivative of guar gum ... Quaternary ammonium compounds, All stub articles, Amine stubs). ...
https://en.wikipedia.org/wiki/Guar_hydroxypropyltrimonium_chloride
AcriflavineAcriflavine
Quaternary ammonium compounds, Acridine dyes, Chlorides). ... Chemical articles with multiple compound IDs, Multiple ...
https://en.wikipedia.org/wiki/Acriflavine
Transition metal alkoxide complexTransition metal alkoxide complex
The conductive additive may be lithium chloride, quaternary ammonium halide, or other. Some examples of metal alkoxides ... The metal ratio in such compounds can vary over a broad range. For instance, the substitution of molybdenum and tungsten for ... 4. Insertion Reactions of Hexakis(alkoxy)dimolybdenum Compounds with Carbon Dioxide and Single-Crystal X-ray Structural ... Many metal alkoxide compounds also feature oxo-ligands. Oxo-ligands typically arise via the hydrolysis, often accidentally, and ...
https://en.wikipedia.org/wiki/Transition_metal_alkoxide_complex
MethanthelineMethantheline
Quaternary ammonium compounds, Carboxylate esters, Xanthenes, Abandoned drugs, All stub articles, Gastrointestinal system drug ...
https://en.wikipedia.org/wiki/Methantheline
SyncrudeSyncrude
... quaternary ammonium compounds, and alkylphenol ethoxylates)." The study used the computer program (CXTFIT) to evaluate the ... Air releases of combined gases without volatile organic compounds (VOCs) by Syncrude Canada in 2005 were 129,741,321 (kg) in ...
https://en.wikipedia.org/wiki/Syncrude
EdelfosineEdelfosine
Quaternary ammonium compounds, Phospholipids, Zwitterions). ... of HIV-1 infected macrophages with alkylphospholipid compounds ...
https://en.wikipedia.org/wiki/Edelfosine
DiquatDiquat
Quaternary ammonium compounds, Desiccants, Heterocyclic compounds with 3 rings, Nephrotoxins). ... It was found that only those quaternary salts which were capable of being converted by reducing agents to radical cations had ... A concern in that use was the possibility that the compound could cause stem-end rot, but protocols were developed that ... Homer, R. F.; Mees, G. C.; Tomlinson, T. E. (1960). "Mode of action of dipyridyl quaternary salts as herbicides". Journal of ...
https://en.wikipedia.org/wiki/Diquat
Dithiazanine iodideDithiazanine iodide
Quaternary ammonium compounds, Veterinary drugs, Polyenes). ... Dithiazanine iodide is a chemical compound. It is used as a ...
https://en.wikipedia.org/wiki/Dithiazanine_iodide
FluorocholineFluorocholine
Quaternary ammonium compounds, All stub articles, Pharmacology stubs). ...
https://en.wikipedia.org/wiki/Fluorocholine
CHAPS detergentCHAPS detergent
It may be synthesized from cholic acid and is zwitterionic due to its quaternary ammonium and sulfonate groups; it is ... Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Chemical articles with ...
https://en.wikipedia.org/wiki/CHAPS_detergent
December JADA finds composites containing quaternary ammonium compounds retain antibacterial properties | American Dental...December JADA finds composites containing quaternary ammonium compounds retain antibacterial properties | American Dental...
December JADA finds composites containing quaternary ammonium compounds retain antibacterial properties. Material could reduce ... Clinical studies have shown that dental composites incorporating quaternary ammonium compounds retain their antibacterial ... "Dental Restorative Materials Containing Quaternary Ammonium Compounds Have Sustained Antibacterial Action," looked at several ... One antibacterial agent, quaternary ammonium coupled with inorganic silica, has been studied in the laboratory and humans. When ...
https://www.ada.org/publications/ada-news/2022/november/jada-finds-composites-containing-quaternary-ammonium-compounds-retain-antibacterial-properties
Quaternary ammonium compounds, benzyl-C12-14-alkyldimethyl, chlorides | PharosQuaternary ammonium compounds, benzyl-C12-14-alkyldimethyl, chlorides | Pharos
Hi! Can I get a quote for a GreenScreen Assessment of Quaternary ammonium compounds, benzyl-C12-14-alkyldimethyl, chlorides [ ... Is anyone else interested in sharing the cost of a GreenScreen assessment of Quaternary ammonium compounds, benzyl-C12-14- ... Profile for "Quaternary ammonium compounds, benzyl-C12-14-alkyldimethyl, chlorides" on Pharos: https://pharosproject.net/ ... See the Compound Group Population Project for more information on how these groups are determined. ...
https://pharosproject.net/chemicals/2023386
Rendering cellulosic articles antimicrobial through treatment with quaternary ammonium compounds having a reactive...Rendering cellulosic articles antimicrobial through treatment with quaternary ammonium compounds having a reactive...
US-3453067-A chemical patent summary.
https://pubchem.ncbi.nlm.nih.gov/patent/US-3453067-A
Effect of subinhibitory exposure to quaternary ammonium compounds on the ciprofloxacin susceptibility of Escherichia coli...Effect of subinhibitory exposure to quaternary ammonium compounds on the ciprofloxacin susceptibility of Escherichia coli...
Quaternary ammonium compound based disinfectants are commonly used in pig and poultry husbandry to maintain farm hygiene. ... Effect of subinhibitory exposure to quaternary ammonium compounds on the ciprofloxacin susceptibility of Escherichia coli ...
https://bmcmicrobiol.biomedcentral.com/articles/10.1186/s12866-020-01818-3/metrics
Chemical Disinfectants | Disinfection & Sterilization Guidelines | Guidelines Library | Infection Control | CDCChemical Disinfectants | Disinfection & Sterilization Guidelines | Guidelines Library | Infection Control | CDC
Quaternary Ammonium Compounds. Overview.. The quaternary ammonium compounds are widely used as disinfectants. Health-care- ... The poor mycobactericidal activities of quaternary ammonium compounds have been demonstrated 55, 73. Quaternary ammonium ... alkyl didecyl dimethyl ammonium chloride, and dialkyl dimethyl ammonium chloride. The newer quaternary ammonium compounds (i.e ... Some of the chemical names of quaternary ammonium compounds used in healthcare are alkyl dimethyl benzyl ammonium chloride, ...
https://www.cdc.gov/infectioncontrol/guidelines/disinfection/disinfection-methods/chemical.html
Quaternary Ammonium Compounds | Profiles RNS
"Quaternary Ammonium Compounds" by people in this website by year, and whether "Quaternary Ammonium Compounds" was a major or ... "Quaternary Ammonium Compounds" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH ( ... Below are the most recent publications written about "Quaternary Ammonium Compounds" by people in Profiles. ... Below are MeSH descriptors whose meaning is more general than "Quaternary Ammonium Compounds". ...
https://profiles.jefferson.edu/display/6393
Air and Surface Sampling Method for Assessing Exposures to Quaternary Ammonium Compounds Using Liquid Chromatography Tandem...Air and Surface Sampling Method for Assessing Exposures to Quaternary Ammonium Compounds Using Liquid Chromatography Tandem...
This method was designed for sampling select quaternary ammonium (quat) compounds in air or on surfaces followed by analysis ... Air and Surface Sampling Method for Assessing Exposures to Quaternary Ammonium Compounds Using Liquid Chromatography Tandem ... Air and Surface Sampling Method for Assessing Exposures to Quaternary Ammonium Compounds Using Liquid Chromatography Tandem ... Title : Air and Surface Sampling Method for Assessing Exposures to Quaternary Ammonium Compounds Using Liquid Chromatography ...
https://stacks.cdc.gov/view/cdc/52135
Corrosion Inhibitor - Quaternary Ammonium Compounds / Alfa ChemistryCorrosion Inhibitor - Quaternary Ammonium Compounds / Alfa Chemistry
Alfa Chemistry provides the most comprehensive and diverse quaternary ammonium salt corrosion inhibitor and related services. ... Among them, the quaternary ammonium salt corrosion inhibitor has excellent corrosion inhibition effect in all aspects, ... At the same time, the non-polar groups of quaternary ammonium salt form a hydrophobic protective film on the metal surface, ... Quaternary ammonium salt corrosion inhibitors only need to use a small amount to achieve good results. ...
https://qacs.alfa-chemistry.com/corrosion-inhibitor.html
China Produce Quaternary Ammonium Compounds Manufacturers and Factory, Suppliers Quotes | SunxiChina Produce Quaternary Ammonium Compounds Manufacturers and Factory, Suppliers Quotes | Sunxi
Produce Quaternary Ammonium Compounds Manufacturers, Factory, Suppliers From China, We welcome buyers all around the word to ... Produce Quaternary Ammonium Compounds. Produce Quaternary Ammonium Compounds - Factory, Suppliers, Manufacturers from China We ... Some disinfectants contain quaternary ammonium compounds, which can trigger or cause asthma. Bleach can cause the respiratory ... Quaternary ammonium compounds are another type of disinfectant...Dow Chemical has transferred the production of its five ...
https://www.sdsunxi.com/produce-quaternary-ammonium-compounds/
311-28-4 CAS | TETRABUTYL AMMONIUM IODIDE | Quaternary Ammonium Compounds | Article No. 06218311-28-4 CAS | TETRABUTYL AMMONIUM IODIDE | Quaternary Ammonium Compounds | Article No. 06218
Substance Information - ECHASubstance Information - ECHA
Quaternary ammonium compounds, benzyl-C12-16-alkyldimethyl, chlorides. Regulatory process names 3 Translated names 23 CAS names ...
https://echa.europa.eu/fr/substance-information/-/substanceinfo/100.063.913
Efficacy of antiseptic treatments - microbewiki
Benzalkonium chloride is classified as a Quaternary Ammonium Compound (QAC), NR4+ where R can be different carbon-hydrogen ... IUPAC of quaternary ammonium compounds [online]. Available from http://goldbook.iupac.org/Q05003.html [accessed 26 October 2012 ... Inactivation of influenza and other viruses by a mixture of virucidal compounds. American Society for Microbiology, 21 (4): 606 ...
https://microbewiki.kenyon.edu/index.php?title=Efficacy_of_antiseptic_treatments&oldid=79077
Registration Dossier - ECHARegistration Dossier - ECHA
Quaternary ammonium compounds, C12-18-alkyltrimethyl, chlorides. *. *. EC number: 939-616-8 , CAS number: 68391-03-7 ...
https://www.echa.europa.eu/web/guest/registration-dossier/-/registered-dossier/12150/7/4/3
Liquids | Liquid Handling | Viking PumpLiquids | Liquid Handling | Viking Pump
Quaternary ammonium compounds. Quaternary ammonium compounds, also known as quats, are used as disinfectants in restaurants, ... inks and in caulking compounds and chewing gum. PVAC is insoluble in water, oils and fats, but soluble in alcohols, esters, ...
https://www.vikingpump.com/liquids
Cetalkonium chloride - CAMEOCetalkonium chloride - CAMEO
... quaternary ammonium compounds .slidergallery { display: block; width: 300px; border: 2px solid #DDD; padding: 2px; margin- ... The compounds effectivness is reduced in solutions containing hard water, salts, or organic compounds. ... An odorless antiseptic compound widely used as a Disinfectant in detergents. Cetol is active at low concentrations and has been ...
https://cameo.mfa.org/index.php?title=Cetalkonium_chloride&oldid=43667
Latest Disinfectant Sprays Market Report | Know the Post-Pandemic Scenario of the IndustryLatest Disinfectant Sprays Market Report | Know the Post-Pandemic Scenario of the Industry
Key formulations used are amphoterics, quaternary ammonium compounds, peracetic acid, phenols, and sodium hypochlorite. ... They are experimenting with different organic compound formulations. Recent COVID 19 pandemic endowed sizable revenue streams ...
https://www.medgadget.com/2021/11/latest-disinfectant-sprays-market-report-know-the-post-pandemic-scenario-of-the-industry.html
Antiseptic: Types, uses, safety, and precautionsAntiseptic: Types, uses, safety, and precautions
quaternary ammonium compound. *chlorhexidine and other diguanides, for use before operations. *antibacterial dye, to treat ...
https://www.medicalnewstoday.com/articles/antiseptic?utm_source=ReadNext
Emphysema Medication: Bronchodilators, Corticosteroids, Phosphodiesterase-4 Inhibitors, Smoking cessation therapies, AntibioticsEmphysema Medication: Bronchodilators, Corticosteroids, Phosphodiesterase-4 Inhibitors, Smoking cessation therapies, Antibiotics
Tiotropium is a quaternary ammonium compound. It elicits anticholinergic/antimuscarinic effects with inhibitory effects on M3 ...
https://emedicine.medscape.com/article/298283-medication
Non-Toxic Fabric Softeners & Dryer Sheets for Sensitive Skin & PlanetNon-Toxic Fabric Softeners & Dryer Sheets for Sensitive Skin & Planet
Quaternary Ammonium Compounds or "Quats". The most common softening chemicals are called "quats" (short for quaternary ammonium ... They are made of woven sheets coated with a solution of a quaternary ammonium salt (Quats) or a silicone oil-based fabric ... variants of hydroxyethyl methyl ammonium methyl sulfate,. *Also hiding as "biodegradable fabric softening agents" or "catatonic ...
https://www.mamavation.com/health/non-toxic-fabric-softeners-dryer-sheets-for-sensitive-skin-planet.html
Genes | Free Full-Text | Ecology and Evolution of the Human Microbiota: Fire, Farming and AntibioticsGenes | Free Full-Text | Ecology and Evolution of the Human Microbiota: Fire, Farming and Antibiotics
The introduction of quaternary ammonium compounds as disinfectants [52] then provided a second selective force. A class 1 ... Gaze, W.H.; Abdouslam, N.; Hawkey, P.M.; Wellington, E.M.H. Incidence of class 1 integrons in a quaternary ammonium compound- ... These resistance determinants include: a mer operon (mercury resistance); qacE (resistance to quaternary ammonium compounds); ... These resistance determinants include: a mer operon (mercury resistance); qacE (resistance to quaternary ammonium compounds); ...
https://www.mdpi.com/2073-4425/6/3/841
Ultraviolet Disinfection Cuts Hospital-Acquired InfectionsUltraviolet Disinfection Cuts Hospital-Acquired Infections
... pediatric patient rooms were disinfected using a quaternary ammonium compound. During the period of UVD use, the UVD system was ...
https://www.medscape.com/viewarticle/825949
Gesellschaft Schweizer Tierärztinnen und Tierärzte GST: Antibiotic and quaternary ammonium compound resistance in Escherichia...Gesellschaft Schweizer Tierärztinnen und Tierärzte GST: Antibiotic and quaternary ammonium compound resistance in Escherichia...
Antibiotic and quaternary ammonium compound resistance in Escherichia coli from calves at the beginning of the -fattening ... Antibiotic and quaternary ammonium compound resistance in Escherichia coli from calves at the beginning of the -fattening ... Antibiotic and quaternary ammonium compound (QAC) resistance genes were identified using microarray and Polymerase Chain ...
https://sat.gstsvs.ch/fr/sat/bulletin-svs/archiv/2019/112019/antibiotic-and-quaternary-ammonium-compound-resistance-in-escherichia-coli-from-calves-at-the-beginn.html?no_cache=1&print=1&type=98
CPC Scheme - C08K Use of inorganic or non-macromolecular organic substances as compounding ingredientsCPC Scheme - C08K Use of inorganic or non-macromolecular organic substances as compounding ingredients
Amines; Quaternary ammonium compounds [2013-01]. C08K 5/175. . . . {containing COOH-groups; Esters or salts thereof} [2013-01] ... Compounds containing a nitrogen atom bound to two other nitrogen atoms, e.g. diazoamino-compounds [2013-01] ... Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond [2013-01] ... Thiocarbonic acids; Derivatives thereof, e.g. xanthates {; i.e. compounds containing -X-C(=X)- groups, X being oxygen or sulfur ...
https://www.uspto.gov/web/patents/classification/cpc/html/cpc-C08K.html
氯化苯甲烷铵MSDS,quaternary ammonium compounds, benzyl-C8-18-alkyldimethyl, chlorides MSDS,63449-41-2 MSDS - MSDS网
氯化苯甲烷铵MSDS,提供了氯化苯甲烷铵的GHS分类,危害象形图,警示词,
https://ghs-msds.cn/msds/6698.html
Insulin Human SG (Standard Grade) ror Cell Culture Medium Use - Pharmaceutical Business reviewInsulin Human SG (Standard Grade) ror Cell Culture Medium Use - Pharmaceutical Business review
Supplier of Quaternary Ammonium Compounds and Recombinant Insulin Human AF. FOLLOW More info about Novo Nordisk Pharmatech A/S ...
https://pharmaceutical-business-review.com/products/insulin-human-sg-standard-grade/
chlorocresacine | Semantic Scholarchlorocresacine | Semantic Scholar
Quaternary Ammonium Compounds. Papers overview. Semantic Scholar uses AI to extract papers important to this topic. ...
https://www.semanticscholar.org/topic/chlorocresacine/2285047
Robinul - Side Effects, Uses, Dosage, Overdose, Pregnancy, Alcohol | RxWikiRobinul - Side Effects, Uses, Dosage, Overdose, Pregnancy, Alcohol | RxWiki
... quaternary ammonium compounds. For more information about Robinul see its generic Glycopyrronium Bromide ...
https://www.rxwiki.com/robinul/
NIOSHTIC-2 Search Results - Full View
Didecyldimethylammonium chloride (DDAC) is a dialkyl-quaternary ammonium compound that is used in numerous products for its ... to DDAC following dermal exposure and raise concerns about the use of this chemical and other quaternary ammonium compounds ... quaternary ammonium compound ...
http://www2a.cdc.gov/nioshtic-2/BuildQyr.asp?s1=mead&f1=AU&Startyear=&terms=3&Adv=1&ct=&Limit=500&Sort=DP+DESC&whichdate=DP&D1=10&EndYear=&PageNo=6&RecNo=56&View=f&
DeCS 2006 - Changed termsDeCS 2006 - Changed terms
Ammonium Compounds. Quaternary Ammonium Compounds. D02 - Organic Chemicals. 1-(5-Isoquinolinesulfonyl)-2-methylpiperazine. 1-(5 ... D03 - Heterocyclic Compounds. Kinetins. Kinetin. D06 - Hormones, Hormone Substitutes, and Hormone Antagonists. Desmopressin. ...
https://decs.bvs.br/I/rep_i2006.htm
DisinfectantsQuatsDerivativesChloridePositively charged quaternaryEthyl alcoholAldehydesInorganicSaltsResistanceCorrosion inhibitorAmino AcidsWipeChemicalsAdsorptionSodiumSanitizerAntisepticEscherichiaWipesIonsOrganic compoundsCoronavirusAntibacterialAntimicrobialSusceptibilitySyntheticNitrogenActiveVolatileSubstancesMeSHMetalsGroupMolecularMetalSoilTypeTotalGrade
Disinfectants7
  • Some disinfectants contain quaternary ammonium compounds, which can trigger or cause asthma. (sdsunxi.com)
  • quaternary ammonium compound (QAC)-based disinfectants are widely used in. (sdsunxi.com)
  • It took months and months for their levels to drop, even after we stopped using quaternary ammonium disinfectants in the facility. (nature.com)
  • Common disinfectants with active ingredients based on quaternary ammonium compounds and chlorine also have virucidal properties. (foodsafetynews.com)
  • Holm is especially concerned about the use of hospital-grade disinfectants like bleaches or quaternary ammonium compounds, often called quats. (eenews.net)
  • But even if it's only custodial staff or teachers using disinfectants, experts say they are concerned about increased use of bleaches or ammonium. (eenews.net)
  • All strains tested were susceptible to sodium hypochlorite, glutaraldehyde and to the association quaternary ammonium - formaldehyde - ethyl alcohol disinfectants. (scielo.br)
Quats2
  • They are made of woven sheets coated with a solution of a quaternary ammonium salt (Quats) or a silicone oil-based fabric softener, while also infusing an additional cocktail of various chemicals into the product. (mamavation.com)
  • Quats (quaternary ammonium compounds) are industrial-grade multi-purpose sanitizers. (diettogo.com)
Derivatives2
  • Derivatives of ammonium compounds, NH4+ Y-, in which all four of the hydrogens bonded to nitrogen have been replaced with hydrocarbyl groups. (jefferson.edu)
  • This compound belongs to the class of organic compounds known as alpha amino acids and derivatives. (drugbank.com)
Chloride4
  • Benzalkonium chloride is classified as a Quaternary Ammonium Compound (QAC), NR4+ where R can be different carbon-hydrogen groups, and are a common antiseptic, because of their amphiphilicity (hydrophobic and hydrophilic) [10,19]. (kenyon.edu)
  • The quaternary ammonium compounds ADBAC ( n -alkyl dimethyl benzyl ammonium chloride) and DDAC (didecyl dimethyl ammonium chloride) were identified after an exhaustive search for what was causing a massive drop-off in mouse fertility after Hunt moved her research animals to Pullman from Case Western Reserve Medical School in Cleveland, Ohio, in 2005. (nature.com)
  • Active agent is a quaternary ammonium compound - benzalkonium chloride. (who.int)
  • To evaluate the inclusion capacity and bactericidal efficiency of diallyl dimethyl ammonium chloride (PDADMAC) diluted in tetrahydrofuran (THF) upon inclusion in the medical grade silicone polymer structure. (bvsalud.org)
Positively charged quaternary2
  • The positively charged quaternary ammonium salt corrosion inhibitor forms competitive adsorption with hydrogen ions in hydrochloric acid solution. (alfa-chemistry.com)
  • Arsenic species column separation is largely achieved due to differences in charge-charge interactions of each negatively charged arsenic component in the mobile phase, with the positively-charged quaternary ammonium groups bound at the column's solid-liquid interface. (cdc.gov)
Ethyl alcohol1
  • In the healthcare setting, "alcohol" refers to two water-soluble chemical compounds-ethyl alcohol and isopropyl alcohol-that have generally underrated germicidal characteristics 482 . (cdc.gov)
Aldehydes1
  • Sterilant chemicals include aldehydes, phenols, and quaternary ammonium compounds. (cdc.gov)
Inorganic3
  • One antibacterial agent, quaternary ammonium coupled with inorganic silica, has been studied in the laboratory and humans. (ada.org)
  • The most toxic of the naturally occurring arsenic compounds are inorganic forms of arsenic and their methylated metabolites. (cdc.gov)
  • Ammonium iron(II) sulfate, or Mohr's salt, is the inorganic compound with the formula (NH4)2Fe(SO4)2·6H2O. (davidantoniocruz.com)
Salts2
  • The compounds effectivness is reduced in solutions containing hard water, salts, or organic compounds. (mfa.org)
  • Effect of the quaternary ammonium salts, tetraethylammonium halide on Rumex acetosa L., Chenopodium album L. and Galinsoga parviflora Cav. (edu.pl)
Resistance10
  • dfrA16 of 588 bp conferring resistance to trimethoprim and qacH of 511 bp conferring resistance to quaternary ammonium compounds (GenBank accession no. (cdc.gov)
  • GC arrays were followed by the qacEΔ1 (which also confers resistance to quaternary ammonium compounds), sul1 (resistance to sulfamethoxazole), and orf5 determinants as found in most class 1 integrons ( 4 ). (cdc.gov)
  • Furthermore, the FRC24 integron contains the antiseptic (quaternary ammonium compounds) resistance gene qacH . (cdc.gov)
  • Antibiotic and quaternary ammonium compound (QAC) resistance genes were identified using microarray and Polymerase Chain Reaction (PCR). (gstsvs.ch)
  • Antibacterial biocides and metals can co-select for antibiotic resistance when bacteria harbour resistance or tolerance genes towards both types of compounds. (biomedcentral.com)
  • Despite numerous case studies, systematic and quantitative data on co-occurrence of such genes on plasmids and chromosomes is lacking, as is knowledge on environments and bacterial taxa that tend to carry resistance genes to such compounds. (biomedcentral.com)
  • The only BMRGs commonly co-occurring with ARGs on plasmids were mercury resistance genes and the qacE∆1 gene that provides low-level resistance to quaternary ammonium compounds. (biomedcentral.com)
  • This is the first large-scale identification of compounds, taxa and environments of particular concern for co-selection of resistance against antibiotics, biocides and metals. (biomedcentral.com)
  • This can occur if a common resistance mechanism is shared by the biocide/metal and the antibiotic, or if the bacterium carries resistance or tolerance genes to both types of compounds [ 4 , 5 ]. (biomedcentral.com)
  • Analysis of the metagenomic sequences detected a total of 60 elements of resistance including 46 ARGs, intI1 , and groEL/ intI1 genes and 12 quaternary ammonium compounds ( qac ) resistance genes across all watershed locations. (frontiersin.org)
Corrosion inhibitor5
  • Quaternary ammonium salt corrosion inhibitor is easy to use and simple to operate. (alfa-chemistry.com)
  • Quaternary ammonium salt corrosion inhibitor is non-toxic, harmless, cheap and easy to obtain. (alfa-chemistry.com)
  • Alfa Chemistry has a professional team with many years of experience and has focused on the preparation and application of quaternary ammonium salt corrosion inhibitor. (alfa-chemistry.com)
  • We are pleased to use our extensive experience and advanced platform to offer the most qualified products and the best service to satisfy each demand from our customers in quaternary ammonium salt corrosion inhibitor. (alfa-chemistry.com)
  • If you want to know more about quaternary ammonium salt corrosion inhibitor, please contact us . (alfa-chemistry.com)
Amino Acids1
  • L-carnitine is a quaternary ammonium compound biosynthesized from the amino acids lysine and methionine. (news-medical.net)
Wipe1
  • The researchers later repeated the experiment, with workers in the two buildings asked to use alcohol hand sanitizers whenever they left their offices and to swab their desks with a quaternary ammonium wipe at the end of the day. (medpagetoday.com)
Chemicals2
  • An application of examined compounds in the soil demonstrated that Chenopodium album L. was the plant the most sensitive to examined chemicals, and tetraethylammonium iodide was the compound with the highest phytotoxicity to the examined weeds. (edu.pl)
  • Ferrous Ammonium Sulfate, also known as Mohr's Salt, is one of the chemicals distributed and supplied by Seidler Chemical. (davidantoniocruz.com)
Adsorption1
  • Due to the large overall molecular weight and strong attraction, the quaternary ammonium salt ions are preferentially adsorbed by the negative charges on the metal surface before the hydrogen ions, thereby forming a dense adsorption layer and inhibiting the progress of the corrosion reaction. (alfa-chemistry.com)
Sodium1
  • The EPA provides a list of these products , which include sodium hypochlorite (bleach), alcohol, hydrogen peroxide, and quaternary ammonium, which constitutes a variety of anti-microbial compounds contained in products such as disinfecting wipes, toilet bowl cleaner and all-purpose spray cleaners such as Lysol. (castlerockco.com)
Sanitizer1
  • We clean all food contact surfaces with quaternary sanitizer when each food handling task is finished and before the next task is started. (diettogo.com)
Antiseptic1
  • An odorless antiseptic compound widely used as a Disinfectant in detergents . (mfa.org)
Escherichia1
  • Among twenty-one antibiotic-multiresistant strains (methicillin-resistant staphylococci, Enterococcus spp, Pseudomonas aeruginosa, Klebsiella pneumoniae, Proteus mirabilis, Enterobacter cloacae, Serratia marcescens and Escherichia coli) eleven (52%) and eight (38%) strains were resistant to the quaternary ammonium and phenol compounds, respectively. (scielo.br)
Wipes2
  • The good news is that when people used alcohol hand sanitizers or quaternary ammonium wipes the contamination rate was reduced by more than 90%, Gerba said. (medpagetoday.com)
  • When the maids used quaternary ammonium wipes, the intervention reduced viral spread by 87%, Gerba said. (medpagetoday.com)
Ions1
  • Ferrous ammonium sulfate (anhydrous) is a compound of ammonium, iron and sulfate in which the ratio of ammonium to iron(2+) to sulfate ions is 2:1:2. (davidantoniocruz.com)
Organic compounds1
  • Studies have also shown that dryer vents emit more than 25 volatile organic compounds (VOCs) , some of which have been classified as hazardous air pollutants by the Environmental Protection Agency. (lifehacker.com)
Coronavirus1
  • Español - Desinfectantes más seguros en estos tiempos de coronavirus. (womensvoices.org)
Antibacterial3
  • Clinical studies have shown that dental composites incorporating quaternary ammonium compounds retain their antibacterial activity over time, giving them the potential to reduce the occurrence of caries around restorations, according to a review published in the December issue of The Journal of the American Dental Association . (ada.org)
  • The cover story, "Dental Restorative Materials Containing Quaternary Ammonium Compounds Have Sustained Antibacterial Action," looked at several studies that examined composite restorative materials incorporating antibacterial agents. (ada.org)
  • Medical grade silicone can be used as a material with antibacterial properties, since it has been able to keep PDADMAC compound attached to its structure, thus acquiring antimicrobial property. (bvsalud.org)
Antimicrobial1
  • Didecyldimethylammonium bromide (DDAB) is a fourth generation dialkyl-quaternary ammonium compound (QAC) that is used in numerous products for its antimicrobial properties. (cdc.gov)
Susceptibility1
  • However, the susceptibility of strains to phenol and to one quaternary ammonium compound was variable. (scielo.br)
Synthetic1
  • Robinul is a brand name medication included in a group of medications called Synthetic anticholinergics, quaternary ammonium compounds . (rxwiki.com)
Nitrogen1
  • Organophosphorus compounds having a quaternary nitrogen (ammonium) attached to the phosphorus atom have the highest toxicity. (cdc.gov)
Active1
  • These compounds are commonly used as active substances in fabric softeners and are a good alternative to the TEA-esterquats (based on triethanolamine), in terms of both biodegradability and cost/performance. (gb-chemie.com)
Volatile1
  • and measured volatile carbonyl compounds (VCCs). (cdc.gov)
Substances2
  • At the same time, the non-polar groups of quaternary ammonium salt form a hydrophobic protective film on the metal surface, which hinders the exchange of substances in the corrosion reaction, thereby reducing the corrosion rate of the metal. (alfa-chemistry.com)
  • Il s'agit d'une source d'informations unique sur les substances chimiques fabriquées et importées en Europe. (europa.eu)
MeSH1
  • Quaternary Ammonium Compounds" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (jefferson.edu)
Metals2
  • High concentrations of quaternary ammonium compounds are corrosive to metals. (sdsunxi.com)
  • 3 )consumption from the industrial ammonium sulfate ammonium sulfate dissolved in distilled water, except the addition of arsenic and heavy metals in solution purification agents, filtration, evaporation, cooling crystallization, centrifugal separation, drying. (davidantoniocruz.com)
Group3
  • Scientific hazard lists sometimes specify a chemical group (such as trimethyltin compounds) without a defined list of CASRNs. (pharosproject.net)
  • See the Compound Group Population Project for more information on how these groups are determined. (pharosproject.net)
  • The highly polar quaternary ammonium group of glycopyrrolate limits its passage across lipid membranes, such as the blood-brain barrier, in contrast to atropine sulfate and scopolamine hydrobromide, which are non-polar tertiary amines which penetrate lipid barriers easily. (nih.gov)
Molecular1
Metal1
  • Wining the majority from the crucial certifications of its market for Produce Quaternary Ammonium Compounds, Silicone Ether , Amino Silicone Oil For Softness , Fumed White Carbon Black , Metal Surface Treatment Agent . (sdsunxi.com)
Soil1
  • 1) mainly used as fertilizer ammonium sulfate, applied to a variety of soil and crops. (davidantoniocruz.com)
Type1
  • Quaternary ammonium compounds are another type of disinfectant. (sdsunxi.com)
Total1
  • This graph shows the total number of publications written about "Quaternary Ammonium Compounds" by people in this website by year, and whether "Quaternary Ammonium Compounds" was a major or minor topic of these publications. (jefferson.edu)
Grade1
  • Novo Nordisk Pharmatech has announced it will be showcasing its innovative biologics and pharmaceutical grade Quaternary ammonium compounds at the World Biosimilar Congress in Switzerland. (medworm.com)
Environmental Cleaning Supplies and Equipment | Environmental Cleaning in Global Healthcare Settings | HAI | CDC
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Guideline for Hand Hygiene in Health-Care Settings
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Compendium of Measures to Prevent Disease Associated with Animals in Public Settings, 2007
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Compendium of Measures to Prevent Disease Associated with Animals in Public Settings, 2011
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Compendium of Measures to Prevent Disease Associated with Animals in Public Settings, 2009
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Interim Guidance for Cargo Trucking Crews for the Prevention of Pandemic Influenza | Pandemic Influenza (Flu) | CDC
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Efficacy of antiseptic treatments - microbewiki
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Compendium of Measures To Control <I>Chlamydia psittaci </I>Infection Among Humans (Psittacosis) and Pet Birds (Avian...
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Antiseptic: Types, uses, safety, and precautions
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Cetalkonium chloride - CAMEO
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Latest Disinfectant Sprays Market Report | Know the Post-Pandemic Scenario of the Industry
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Water | Background | Environmental Guidelines | Guidelines Library | Infection Control | CDC
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Hantavirus Pulmonary Syndrome --- United States: Updated Recommendations for Risk Reduction
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Genes | Free Full-Text | Ecology and Evolution of the Human Microbiota: Fire, Farming and Antibiotics
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Ultraviolet Disinfection Cuts Hospital-Acquired Infections
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Chronic Obstructive Pulmonary Disease (COPD) and Emphysema in Emergency Medicine Medication: Bronchodilators, Corticosteroids,...
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Neurogenic Bladder: Overview, Neuroanatomy, Physiology and Pathophysiology
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Insulin Human SG (Standard Grade) ror Cell Culture Medium Use - Pharmaceutical Business review
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Chlorocresacine | Semantic Scholar
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ENews: Volume 20, Number 12 (April 2023) | NIOSH | CDC
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