A colorless, slightly viscous liquid used as a defoaming or wetting agent. It is also used as a solvent for protective coatings, waxes, and oils, and as a raw material for plasticizers. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)
Isomeric forms and derivatives of octanol (C8H17OH).
Alkyl compounds containing a hydroxyl group. They are classified according to relation of the carbon atom: primary alcohols, R-CH2OH; secondary alcohols, R2-CHOH; tertiary alcohols, R3-COH. (From Grant & Hackh's Chemical Dictionary, 5th ed)
Eight-carbon saturated hydrocarbon group of the methane series. Include isomers and derivatives.
Isomeric forms and derivatives of hexanol (C6H11OH).
A colorless liquid with a fragrant odor. It is used as an intermediate, solvent and in cosmetics.
An isomer of 1-PROPANOL. It is a colorless liquid having disinfectant properties. It is used in the manufacture of acetone and its derivatives and as a solvent. Topically, it is used as an antiseptic.
Agents that are capable of inducing a total or partial loss of sensation, especially tactile sensation and pain. They may act to induce general ANESTHESIA, in which an unconscious state is achieved, or may act locally to induce numbness or lack of sensation at a targeted site.
Connections between cells which allow passage of small molecules and electric current. Gap junctions were first described anatomically as regions of close apposition between cells with a narrow (1-2 nm) gap between cell membranes. The variety in the properties of gap junctions is reflected in the number of CONNEXINS, the family of proteins which form the junctions.
An oleanolic acid from GLYCYRRHIZA that has some antiallergic, antibacterial, and antiviral properties. It is used topically for allergic or infectious skin inflammation and orally for its aldosterone effects in electrolyte regulation.
A four carbon linear hydrocarbon that has a hydroxy group at position 1.
Isomeric forms and derivatives of pentanol (C5H11OH).
Miniaturized methods of liquid-liquid extraction.
An agent derived from licorice root. It is used for the treatment of digestive tract ulcers, especially in the stomach. Antidiuretic side effects are frequent, but otherwise the drug is low in toxicity.
A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Liquids that dissolve other substances (solutes), generally solids, without any change in chemical composition, as, water containing sugar. (Grant & Hackh's Chemical Dictionary, 5th ed)
An acquired disorder characterized by recurrent symptoms, referable to multiple organ systems, occurring in response to demonstrable exposure to many chemically unrelated compounds at doses below those established in the general population to cause harmful effects. (Cullen MR. The worker with multiple chemical sensitivities: an overview. Occup Med 1987;2(4):655-61)
A genus of gram-negative, aerobic bacteria, in the family XANTHOMONADACEAE. It is found in the xylem of plant tissue.
Organic compounds that generally contain an amino (-NH2) and a carboxyl (-COOH) group. Twenty alpha-amino acids are the subunits which are polymerized to form proteins.
A plant genus in the family VITACEAE, order Rhamnales, subclass Rosidae. It is a woody vine cultivated worldwide. It is best known for grapes, the edible fruit and used to make WINE and raisins.
An eleven-amino acid neurotransmitter that appears in both the central and peripheral nervous systems. It is involved in transmission of PAIN, causes rapid contractions of the gastrointestinal smooth muscle, and modulates inflammatory and immune responses.
1976 accidental release of DIOXINS from a manufacturing facility in Seveso, ITALY following an equipment failure.
The aggregate of social and cultural institutions, forms, patterns, and processes that influence the life of an individual or community.
Declarations by patients, made in advance of a situation in which they may be incompetent to decide about their own care, stating their treatment preferences or authorizing a third party to make decisions for them. (Bioethics Thesaurus)
A genus of zygomycetous fungi of the family Mucoraceae, order MUCORALES.
Salts that melt below 100 C. Their low VOLATILIZATION can be an advantage over volatile organic solvents.
An order of zygomycetous fungi, usually saprophytic, causing damage to food in storage, but which may cause respiratory infection or MUCORMYCOSIS in persons suffering from other debilitating diseases.
An enzyme of the hydrolase class that catalyzes the reaction of triacylglycerol and water to yield diacylglycerol and a fatty acid anion. It is produced by glands on the tongue and by the pancreas and initiates the digestion of dietary fats. (From Dorland, 27th ed) EC 3.1.1.3.
Any member of the class of enzymes that catalyze the cleavage of the substrate and the addition of water to the resulting molecules, e.g., ESTERASES, glycosidases (GLYCOSIDE HYDROLASES), lipases, NUCLEOTIDASES, peptidases (PEPTIDE HYDROLASES), and phosphatases (PHOSPHORIC MONOESTER HYDROLASES). EC 3.
A relatively common disorder characterized by a fairly specific pattern of tremors which are most prominent in the upper extremities and neck, inducing titubations of the head. The tremor is usually mild, but when severe may be disabling. An autosomal dominant pattern of inheritance may occur in some families (i.e., familial tremor). (Mov Disord 1988;13(1):5-10)
Cyclical movement of a body part that can represent either a physiologic process or a manifestation of disease. Intention or action tremor, a common manifestation of CEREBELLAR DISEASES, is aggravated by movement. In contrast, resting tremor is maximal when there is no attempt at voluntary movement, and occurs as a relatively frequent manifestation of PARKINSON DISEASE.
Mentha is a genus of the mint family (LAMIACEAE). It is known for species having characteristic flavor and aroma.
A plant genus of the family APIACEAE. The leaves are the source of cilantro and the seeds are the source of coriander, both of which are used in SPICES.
Alkaloid isolated from seeds of Peganum harmala L., Zygophyllaceae. It is identical to banisterine, or telepathine, from Banisteria caapi and is one of the active ingredients of hallucinogenic drinks made in the western Amazon region from related plants. It has no therapeutic use, but (as banisterine) was hailed as a cure for postencephalitic Parkinson disease in the 1920's.
A telecommunication system combining the transmission of a document scanned at a transmitter, its reconstruction at a receiving station, and its duplication there by a copier.
Platforms that provide the ability and tools to create and publish information accessed via the INTERNET. Generally these platforms have three characteristics with content user generated, high degree of interaction between creator and viewer, and easily integrated with other sites.
Individuals connecting by family, work or other interests. It also includes connectivity facilitated by computer-based communications.
Using an INTERNET based personal journal which may consist of reflections, comments, and often hyperlinks.
Recording of visual and sometimes sound signals on magnetic tape.
Usually high-molecular-weight, straight-chain primary alcohols, but can also range from as few as 4 carbons, derived from natural fats and oils, including lauryl, stearyl, oleyl, and linoleyl alcohols. They are used in pharmaceuticals, cosmetics, detergents, plastics, and lube oils and in textile manufacture. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)
Drinkable liquids containing ETHANOL.
Behaviors associated with the ingesting of alcoholic beverages, including social drinking.
A plastic substance deposited by insects or obtained from plants. Waxes are esters of various fatty acids with higher, usually monohydric alcohols. The wax of pharmacy is principally yellow wax (beeswax), the material of which honeycomb is made. It consists chiefly of cerotic acid and myricin and is used in making ointments, cerates, etc. (Dorland, 27th ed)
Drugs manufactured and sold with the intent to misrepresent its origin, authenticity, chemical composition, and or efficacy. Counterfeit drugs may contain inappropriate quantities of ingredients not listed on the label or package. In order to further deceive the consumer, the packaging, container, or labeling, may be inaccurate, incorrect, or fake.
An autosomal recessive neurocutaneous disorder characterized by severe ichthyosis MENTAL RETARDATION; SPASTIC PARAPLEGIA; and congenital ICHTHYOSIS. It is caused by mutation of gene encoding microsomal fatty ALDEHYDE DEHYDROGENASE leading to defect in fatty alcohol metabolism.
A genus of destructive parasitic OOMYCETES in the family Peronosporaceae, order Peronosporales, affecting numerous fruit, vegetable, and other crops. Differentiation of zoospores usually takes place in the sporangium and no vesicle is formed. It was previously considered a fungus.
Chemicals that kill or inhibit the growth of fungi in agricultural applications, on wood, plastics, or other materials, in swimming pools, etc.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
Pesticides or their breakdown products remaining in the environment following their normal use or accidental contamination.
A species of parasitic OOMYCETES in the family Peronosporaceae that is the causative agent of late blight of potato.
A genus of destructive root-parasitic OOMYCETES in the family Pythiaceae, order Peronosporales, commonly found in cultivated soils all over the world. Differentiation of zoospores takes place in a vesicle.
A plant species of the family CUCURBITACEAE, order Violales, subclass Dilleniidae known for the melon fruits with reticulated (net) surface including cantaloupes, honeydew, casaba, and Persian melons.

N-Substituted analogues of S-nitroso-N-acetyl-D,L-penicillamine: chemical stability and prolonged nitric oxide mediated vasodilatation in isolated rat femoral arteries. (1/84)

Previous studies show that linking acetylated glucosamine to S-nitroso-N-acetyl-D,L-penicillamine (SNAP) stabilizes the molecule and causes it to elicit unusually prolonged vasodilator effects in endothelium-denuded, isolated rat femoral arteries. Here we studied the propanoyl (SNPP; 3 carbon side-chain), valeryl (SNVP; 5C) and heptanoyl (SNHP; 7C) N-substituted analogues of SNAP (2C), to further investigate other molecular characteristics that might influence chemical stability and duration of vascular action of S-nitrosothiols. Spectrophotometric analysis revealed that SNVP was the most stable analogue in solution. Decomposition of all four compounds was accelerated by Cu(II) and cysteine, and neocuproine, a specific Cu(I) chelator, slowed decomposition of SNHP. Generation of NO from the compounds was confirmed by electrochemical detection at 37 degrees C. Bolus injections of SNAP (10 microl; 10(-8)-10(-3) M) into the perfusate of precontracted, isolated rat femoral arteries taken from adult male Wistar rats (400-500 g), caused concentration-dependent, transient vasodilatations irrespective of endothelial integrity. Equivalent vasodilatations induced by SNVP and SNHP were transient in endothelium-intact vessels but failed to recover to pre-injection pressures at moderate and high concentrations (10(-6)-10(-3) M) in those denuded of endothelium. This sustained effect (> 1 h) was most prevalent with SNHP and was largely reversed by the NO scavenger, haemoglobin. We suggest that increased lipophilicity of SNAP analogues with longer sidechains facilitates their retention by endothelium-denuded vessels; subsequent slow decomposition within the tissue generates sufficient NO to cause prolonged vasodilatation. This is a potentially useful characteristic for targeting NO delivery to areas of endothelial damage.  (+info)

A solvent model for simulations of peptides in bilayers. I. Membrane-promoting alpha-helix formation. (2/84)

We describe an efficient solvation model for proteins. In this model atomic solvation parameters imitating the hydrocarbon core of a membrane, water, and weak polar solvent (octanol) were developed. An optimal number of solvation parameters was chosen based on analysis of atomic hydrophobicities and fitting experimental free energies of gas-cyclohexane, gas-water, and octanol-water transfer for amino acids. The solvation energy term incorporated into the ECEPP/2 potential energy function was tested in Monte Carlo simulations of a number of small peptides with known energies of bilayer-water and octanol-water transfer. The calculated properties were shown to agree reasonably well with the experimental data. Furthermore, the solvation model was used to assess membrane-promoting alpha-helix formation. To accomplish this, all-atom models of 20-residue homopolypeptides-poly-Leu, poly-Val, poly-Ile, and poly-Gly in initial random coil conformation-were subjected to nonrestrained Monte Carlo conformational search in vacuo and with the solvation terms mimicking the water and hydrophobic parts of the bilayer. All the peptides demonstrated their largest helix-forming tendencies in a nonpolar environment, where the lowest-energy conformers of poly-Leu, Val, Ile revealed 100, 95, and 80% of alpha-helical content, respectively. Energetic and conformational properties of Gly in all environments were shown to be different from those observed for residues with hydrophobic side chains. Applications of the solvation model to simulations of peptides and proteins in the presence of membrane, along with limitations of the approach, are discussed.  (+info)

Agonist and potentiation actions of n-octanol on gamma-aminobutyric acid type A receptors. (3/84)

The n-octanol effects on the gamma-aminobutyric acid type A (GABAA) receptor were studied in human embryonic kidney 293 cells transfected with alpha1, beta2, and gamma2S subunit cDNAs. GABA-evoked currents had an EC50 of 13.3 +/- 1.7 microM and a Hill coefficient (nH) of 1.4 +/- 0.1. n-Octanol was also capable of evoking a small current with an EC50 of 1000 microM and an nH of 2. In addition, n-octanol modulated GABA-induced currents in a concentration-dependent manner. Coapplications of n-octanol increased peak currents evoked by 3 microM GABA with an EC50 of 190 microM and an nH of 1.8. The extent of potentiation decreased with increasing GABA concentrations and no potentiation was observed when n-octanol was coapplied with 1000 microM GABA. One-minute preapplication of 1000 microM n-octanol slightly potentiated 3 microM GABA-induced current, whereas it suppressed 300 microM GABA-induced current to 16% of the control, suggesting that 84% of the receptors underwent desensitization. Two models were used to explain n-octanol agonistic and potentiating actions on the alpha1beta2gamma2S GABAA receptor: n-octanol binds to multiple sites to exert multiple actions, or n-octanol acts as a partial agonist to manifest these actions. The partial agonist model is unique because it is a simpler model to explain n-octanol actions on the GABAA receptor.  (+info)

Functional gap junctions in the early sea urchin embryo are localized to the vegetal pole. (4/84)

Using the whole-cell voltage-clamp technique we have studied electrical coupling and dye coupling between pairs of blastomeres in 16- to 128-cell-stage sea urchin embryos. Electrical coupling was established between macromeres and micromeres at the 16-cell stage with a junctional conductance (G(j)) of 26 nS that decreased to 12 nS before the next cleavage division. G(j) between descendants of macromeres and micromeres was 12 nS falling to 8 nS in the latter half of the cell cycle. Intercellular current intensity was independent of transjunctional voltage, nondirectional, and sensitive to 1-octanol and therefore appears to be gated through gap junction channels. There was no significant coupling between other pairs of blastomeres. Lucifer yellow did not spread between these electrically coupled cell pairs and in fact significant dye coupling between nonsister cells was observed only at the 128-cell stage. Since 1-octanol inhibited electrical communication between blastomeres at the 16- to 64-cell stage and also induced defects in formation of the archenteron, it is possible that gap junctions play a role in embryonic induction.  (+info)

Quantitative trait loci influencing honeybee alarm pheromone levels. (5/84)

Quantitative trait loci (QTL) mapping procedures were used to identify loci that influence the levels of alarm pheromones found in the stinging apparatus of worker honeybees. An F1 queen was produced from a cross between a queen of European origin and a drone descended from an African subspecies. Haploid drones from the hybrid queen were individually backcrossed to European queens to produce 172 colonies. Samples of stings were taken from backcross workers of these colonies. Alarm pheromone levels were determined by gas chromatography. RAPD markers were scored from the haploid drone fathers of these colonies. The multiple-QTL model (MQM) of MapQTL was used to identify QTLs that influence the levels of four alarm pheromone components. Seven independent, potential QTLs were identified with LOD scores greater than two, and one at LOD 1.88. We identified one QTL for n-decyl acetate, three for n-octanol, four for isopentyl acetate, and one for hexyl acetate. One region of linkage group XI shows a strong influence on body size and the levels of three alarm pheromone components. This locus explained 40% of the variance for the amount of n-decyl acetate (LOD 6.57). In general, the QTLs influencing alarm pheromone levels were independent of previously identified loci that influenced the stinging behavior of these colonies. The only exception was a potential locus influencing levels of n-octanol, which was inversely correlated with stinging behavior.  (+info)

A cell type-specific and gap junction-independent mechanism for the herpes simplex virus-1 thymidine kinase gene/ganciclovir-mediated bystander effect. (6/84)

Tumor cells expressing the herpes simplex virus type 1 thymidine kinase (HSV-tk) gene are killed by nucleoside analogues such as ganciclovir (GCV). GCV affects not only the cells expressing HSV-tk but also neighboring cells that do not express the gene; this phenomenon commonly is called "bystander effect." GCV metabolites transfer via gap junctional intercellular communication (GJIC) accounts for the bystander effect in different cell lines, but other mechanisms have also been described. In this study, we analyzed the mechanisms of the bystander effect in two cell lines exhibiting different capacities of communication (DHD/K12 and 9L). The 9L cells exhibited a very good bystander effect, which was completely blocked by a long-term inhibitor of GJIC, 18 alpha-glycyrrhetinic acid. DHD/K12 cells exhibited a moderate bystander effect that was not abolished by 18 alpha-glycyrrhetinic acid or 1-octanol, another strong inhibitor of GJIC. Interestingly, we also observed a bystander effect in cultures where HSV-tk-expressing DHD/K12 cells were physically separated from their untransfected counterparts but grown in the same medium. Moreover, the transfer of filtered conditioned medium from GCV-treated HSV-tk-expressing DHD/K12 cells to DHD/K12 parental cells induced a decrease of survival in a concentration-dependent manner, suggesting that the bystander effect in this cell line was mediated by a soluble factor.  (+info)

Blocking and the detection of odor components in blends. (7/84)

Recent studies of olfactory blocking have revealed that binary odorant mixtures are not always processed as though they give rise to mixture-unique configural properties. When animals are conditioned to one odorant (A) and then conditioned to a mixture of that odorant with a second (X), the ability to learn or express the association of X with reinforcement appears to be reduced relative to animals that were not preconditioned to A. A recent model of odor-based response patterns in the insect antennal lobe predicts that the strength of the blocking effect will be related to the perceptual similarity between the two odorants, i.e. greater similarity should increase the blocking effect. Here, we test that model in the honeybee Apis mellifera by first establishing a generalization matrix for three odorants and then testing for blocking between all possible combinations of them. We confirm earlier findings demonstrating the occurrence of the blocking effect in olfactory learning of compound stimuli. We show that the occurrence and the strength of the blocking effect depend on the odorants used in the experiment. In addition, we find very good agreement between our results and the model, and less agreement between our results and an alternative model recently proposed to explain the effect.  (+info)

Effects of insulin-like growth factor-I on in vitro final oocyte maturation and ovarian steroidogenesis in striped bass, Morone saxatilis. (8/84)

Recombinant human (rh) insulin-like growth factor-I (IGF-I) was more potent than rhIGF-II at inducing in vitro germinal vesicle breakdown (GVBD), a marker for resumption of meiosis, in oocytes of striped bass. Treatment of ovarian fragments containing oocytes in intact follicles with rhIGF-I increased concentrations of estradiol-17beta and maturation-inducing steroid (MIS) 17,20beta, 21-trihydoxy-4-pregnen-3-one (20beta-S) in the culture medium and decreased testosterone levels. The follicles were too immature for oocytes to complete GVBD in response to 20beta-S (MIS incompetent) or hCG. Addition of 20beta-S to cultures did not increase the percentage of oocytes completing GVBD in response to rhIGF-I or rhIGF-II. Bovine insulin was without effect on GVBD or steroid production. Incubation of MIS-competent follicles with actinomycin D, cyanoketone, trilostane, 1-heptanol, or 1-octanol had no effect on rhIGF-I-induced GVBD, but attenuated hCG-induced GVBD and 20beta-S production. Cycloheximide inhibited rhIGF-I-induced GVBD. Collectively, these observations indicate that IGF-I can induce GVBD via MIS- and transcription-independent pathways without coupled gap junctions between oocytes and granulosa cells or among granulosa cells, but requires protein synthesis to do so. An rhIGF-I analogue that does not bind IGF-binding proteins, des(1,3)IGF-I, was more potent than rhIGF-I in inducing GVBD, suggesting ovarian IGF-binding proteins may inhibit IGF-I action.  (+info)

Objectives The occupational hazard of chemical absorption via dermal route was frequently assessed by evaluating the skin permeability (Kp) of chemical. In addition to in vitro testing using human skin, the quantitative structure-activity relationship (QSAR) has been employed as an alternative source to providing Kp. In the early Kp QSARs the octanol-water partition coefficient (log KOW) and molecular weight (MW) were commonly applied as dominant properties to describe transdermal transport of chemical. This study examined the efficacy of log KOW-/MW-based QSARs in Kp prediction.. ...
1. W.Y. Ko, L.J. Chen, S.T. Lin, and Y.P. Chen, Measurements for the Dissociation Conditions of Methane Hydrate in the Presence of 1,3,5-Trioxane and Oxolan-2-ylmethanol, J. Chem. Eng. Data, 56 (8): 3406-3410, 2011.. 2. Y.-C. Huang, J.-H. Hsu, Y.-C. Liao, W.-C. Yen, S.-S. Li, S.-T. Lin, C.-W. Chen, and W.-F. Su, Employing an amphiphilic interfacial modifier to enhance the performance of a poly(3-hexyl thiophene)/TiO2 hybrid solar cell, J. Mater. Chem., 21 4450- 4456, 2011.. 3. S.-N. Huang, T.A. Pascal, W.A. Goddard, P.K. Maiti, and S.-T. Lin, Absolute Entropy and Energy of Carbon Dioxide Using the Two-Phase Thermodynamic Model, J. Chem. Theory Comput., 7 (6): 1893-1901, 2011.. 4. M.T. Hsieh and S.T. Lin, A Predictive Model for the Excess Gibbs Free Energy of Fully Dissociated Electrolyte Solutions, AIChE J., 57 (4): 1061-1074, 2011.. 5. C.M. Hsieh, S. Wang, S.T. Lin, and S.I. Sandler, A Predictive Model for the Solubility and Octanol-Water Partition Coefficient of Pharmaceuticals, J. ...
Chiral 2-octanol is one of the key intermediates for preparation of liquid crystal materials, as well as many optically active pharmaceuticals. Lipase catalyzed kinetic resolution has proved to be an efficient technique for synthesis of enantiomerically enriched compounds. In the present study, optimization and kinetic modeling of kinetic resolution of (±)-2-octanol was done by using vinyl acetate as an acyl donor in n-heptane as a solvent. Response surface methodology (RSM) and four-factor-five-level Centre Composite Rotatable Design (CCRD) were employed to evaluate the effect of various parameters such as speed of agitation, enzyme loading, temperature and acyl donor/alcohol molar ratio on conversion, enantiomeric excess (ee), enantioselectivity and initial rate of reaction. Acylation of 2-octanol with vinyl acetate catalyzed by Novozyme 435 follows the ternary complex mechanism (ordered bi-bi mechanism) with inhibition by 2-octanol.
Chiral 2-octanol is one of the key intermediates for preparation of liquid crystal materials, as well as many optically active pharmaceuticals. Lipase catalyzed kinetic resolution has proved to be an efficient technique for synthesis of enantiomerically enriched compounds. In the present study, optimization and kinetic modeling of kinetic resolution of (±)-2-octanol was done by using vinyl acetate as an acyl donor in n-heptane as a solvent. Response surface methodology (RSM) and four-factor-five-level Centre Composite Rotatable Design (CCRD) were employed to evaluate the effect of various parameters such as speed of agitation, enzyme loading, temperature and acyl donor/alcohol molar ratio on conversion, enantiomeric excess (ee), enantioselectivity and initial rate of reaction. Acylation of 2-octanol with vinyl acetate catalyzed by Novozyme 435 follows the ternary complex mechanism (ordered bi-bi mechanism) with inhibition by 2-octanol.
TY - CHAP. T1 - The effect of hydrostatic pressure & octanol on the conductance change produced by a quantum of acetylcholine at the frog neuromuscular junction. AU - Ashford, Michael L J. AU - MacDonald, A. G.. AU - Wann, K. T.. PY - 1982. Y1 - 1982. M3 - Chapter (peer-reviewed). BT - Eighth Annual Congress of European Undersea Biomedical Society. PB - North Sea Medical Center. ER - ...
VCPL, Hyderabad India offers Octan-1-ol HPLC CAS # 111-87-5. We are best Octanol, Octan-1-ol HPLC, Octyl alcohol, 1-Octanol, Octan-1-ol HPLC manufacturer
An experiment was undertaken by Tanniet al. (1992) to determine the octanol-water partition coefficient of 2-(2-methylpropoxy)ethanol and thirteen other ethylene glycol ethers as part of a study evaluating structure-toxicity relationships. The estimation (solubility ratio) methodology followed was according to that outlined by Tanni and Hashimoto (1982) and involved analyses by gas-liquid chromatography with flame ionisation detection and a glass column. Under the conditions of the experiment, 2-(2-methylpropoxy)ethanol was reported to be evidently separated from the organic (n-octanol) phase that had been dissolved in water. Following analyses, a log Kow of 0.75 was determined for 2-(2-methylpropoxy)ethanol. ...
Transport of metals between aqueous phase and soil/sediment/suspended matter should be described on the basis of measured soil/water, sediment/water and suspended matter/water equilibrium partition coefficients (Kp), instead of using common mathematical relationships based on, for example, octanol-water partition coefficients, as is usually done for organic chemicals (TGD, 1996). Kpsoil Four reliable studies were identified in the EU RAR for diantimony trioxide which report soil Kp. Vangheluwe et al. (2001) report the results of a transformation experiment in soil using Sb2O3and SbCl3. The transformation experiment was performed for a duration of 24 weeks, with soils incubated at 20ºC, with a final humidity of 22g/100g dry substance (both soils). The incubation was initiated with 2 drying/rewetting cycles. Calculation of the Kpsoil, using a control soil in Vangheluwe et al. (2001), results in a partition coefficient in sandy soils of 81 l/kg (log Kpsoil= 1.91) and 150 l/kg (log Kpsoil= 2.18) in ...
This study evaluates the potential application of micellar liquid chromatography (MLC) to predict skin permeation with a series of model compounds. MLC has previously been found to be useful in the prediction of partition coefficient values (logP) for pharmaceutical compounds, yet has not been incorporated in skin permeability models prior to this work. This article provides statistically supported data that this technique enhances the ability to predict the permeability of similar drugs through the skin (Kp). The replacement of a traditional physicochemical parameter, namely the octanol-water partition coefficient (logPow) with a chromatographically determined value (logPmw), results in a quantitative partition-permeability relationship that is robust to variation. MLC offers many benefits compared with the traditional techniques employed to obtain logP values.. ...
Waiver. In accordance with column 2 of REACH Annexes XIII, the adsorption / desorption study (required in section 9.3.1 and 9.3.3) do not need to be conducted if, based on the physicochemical properties the substance can be expected to have a low potential for adsorption (e.g. the substance has a low octanol-water partition coefficient). The partition coefficient of HQEE was determined in a reliable study (Young 2012) where the measured log Kow is 0.41. Therefore, HQEE is considered to have low potential for absorption and no further testing is required. ...
No data on toxicokinetics, metabolism and distribution are available for 2-aminoethyldiethylamine. Based on the available toxicological studies and the physico-chemical properties, particularly water solubility and octanol-water partition coefficient, absorption via oral, inhalative and dermal route a respective assessment is possible. The test substance is expected to be well absorbed by the respiratory and gastro-intestinal tracts and through the skin.The target test substance is assumed to be widely distributed and comprehensively metabolized. If not excreted unchanged, excretion of the metabolites may occur predominantly via the urine. The test substance is not expected to accumulate and there is no evidence for a (sex-)specific toxic effect ...
For each SSRI, laboratory environmental fate measurements will include the following: aqueous solubility; octanol-water partition coefficient (Kow); acid dissociation constant (pKa); soil adsorption coefficient (Koc); hydrolysis and aqueous direct photolysis rates at pH 5,7and 9; indirect photolysis rates including the hydroxyl radical rate constant; irradiated and dark aerobic-aquatic metabolism; and ready biodegradability. Major degradation products will be identified wherever possible. The occurrence of each SSRI and major metabolites/degradation products will be measured over one year in raw and treated wastewater, and receiving water at sub-ppb levels. Potential loads to waste treatment facilities will be assessed through surveys of numbers of prescriptions filled by local pharmacies. Acute toxicity and chronic exposure tests for survival and reproduction will be conducted with Ceriodaphnia following EPA protocols on each SSRI as well as on raw sewage water and treated effluent. Toxicity ...
A mathematical model has been developed that is based on the molecular mechanism of diffusion and that explicitly incorporates the non-uniform structure of the stratum corneum. The model is used to predict permeability coefficients of chemicals based on their molecular weight (MW) and octanol-water partition coefficient (P).
A poster (P165) presented at ASMS 2017, Indianapolis, discusses three sample preparation methodologies for 52 drug analytes, and presents evaluations of recovery, matrix effects and process efficiency. While dilute and shoot methods are easy and affordable, they can result in shortened LC column lifetimes and increased MS instrumentation downtime. Matrix effects can also effect sensitivity and overall method performance. Supported Liquid extraction (SLE) and Solid Phase Extraction (SPE) provide cleaner samples for LC-MS/MS and more robust clinical assays.. Successful sample preparation method development requires understanding the retention mechanism of the analytes in the assay. The octanol-water partition coefficient (logP) and acid dissociation constant (pKa) of the compounds of interest are important properties that can guide sample preparation strategy and optimization of method conditions.. Conclusions. ...
Crystals of an ion-channel-forming peptaibol peptide in a partial membrane environment have been obtained by cocrystallizing antiamoebin with n-octanol. The antiamoebin molecule has a bent helical conformation very similar to that established for Leu-zervamicin, despite a significantly different sequence for residues 1-8. The bent helices assemble to form a polar channel in the shape of an hour glass that is quite comparable to that of Leu-zervamicin. The molecules of cocrystallized octanol are found in two different areas with respect to the assembly of peptide molecules. One octanol molecule mimics a membrane segment along the hydrophobic exterior of the channel assembly. The other octanol molecules fill the channel in such a way that their OH termini satisfy the C==O moieties directed into the interior of the channel. Structure parameters for C82 H27 N17 O20(.3) C8H18O are space group P2(1) 2(1) 2(1), a = 9.143(2) A, b = 28.590(8) A, c = 44.289(8) A, Z = 4, agreement factor R1 = 11.95% for 4,113
BioAssay record AID 24206 submitted by ChEMBL: Partition coefficient between octanol and pH 7.2 phosphate buffer; NT means Not tested.
The researchers say if this were to be scaled up for industrial systems the engineered bacteria would produce the non-toxic derivative of 1-octanol, which would then be recovered and chemically transformed back into 1-octanol, ready for use.. The team found that their system produced 1-octanol without affecting the growth of the bacteria. They also found the system produced more 1-octanol than a system without the derivatization step, which they think is related to the fact that the derivative is not only less toxic but also more soluble in the surrounding water or solvent.. Dr. Jones said: A more soluble chemical may move away from the cells quicker, where its less likely to interfere with any of the bacterias processes.. Now the team has shown the concept of creating derivatives using programmed microorganisms, they want to set up a complete system, from production of the derivative to recovery of the desired chemical.. This will help them refine the process, and potentially scale it up ...
Lonsdale, T. H.; Lauterbach, L.; Malca, S. H.; Nestl, B. M.; Hauer, B.; Lenz, O. H2-driven biotransformation of n-octane to 1-octanol by a recombinant Pseudomonas putida strain co-synthesizing an O2-tolerant hydrogenase and a P450 monooxygenase. Chem. Commun. 2015, 51 (90), 16173-16175.. Farmer, T. J.; Clark, J. H.; Gothe, M. L.; Macquarrie, D. J.; Sherwood, J. p-Cymenesulphonyl Chloride: A Bio-Based Activating Group and Protecting Group for Greener Organic Synthesis. J. Braz. Chem. Soc. 2015, 26 (9), 1914-1919.. ...
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Sigma-Aldrich offers Aldrich-218405, 3-Octanol for your research needs. Find product specific information including CAS, MSDS, protocols and references.
Let us now consider the transfer of amino acids from water to a bilayer membrane. According to the calculations of MacCallum et al. (2007), transfer from bulk water to the membrane interior correlates well with the water/cyclohexane scale. In contrast, the transfer of free energy from bulk water to the membrane interface correlates very well with the water/octanol scale. This is the result one would expect a priori. Indeed, it was noted previously that the partitioning of short peptide, designed to occupy the membrane-solution interface, correlates well with the water/octanol scale (Wimley and White, 1996; Wimley et al., 1996). In summary, the water/octanol thermodynamic scale does not reflect the partitioning of amino acids in the interior of membranes but to the membrane-solution interface. Finally, let us consider an even more complex situation, the insertion of transmembrane helices using the translocon expression system. The fascinating measurements of Hessa et al. (2005a) are suggestive of ...
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database ...
The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database ...
2012 Molecular Targeting Technologies, Inc. • MTTI Telephone: 610-738-7938 • MTTI Fax: 610-738-7928 • Visit us on Facebook Or Youtube ...
Positioning the Juvenile in the Postoperative Span Way of thinking the child on the from side with the chairman of the bed flat or at the level prescribed by the neurosurgeon. After in unison district is examined, the progeny may feel more congenial replacing that thing of clothing previously removing another one (Bunik et al. Do your investigate ahead language on [url=http://spacelink.org/learning/education-28/lecture-3/index.html]order maxalt 10mg amex[/url] pain treatment center brentwood ca. In a few words, the core of interest is added to a ark containing even volumes of o and a nonmiscible systematic liquid such as n-octanol or a biotic lipid or vegetable oil. Turn over submit hygiene includes both agency washing with soap and bath-water and the consume of alcohol-based products (gels, rinses, foams) that do not ask for water. Afterwards 2 weeks of not respiration [url=http://spacelink.org/learning/education-28/lecture-11/index.html]buy discount claritin 10mg on line[/url] allergy ...
Eseja: Investigation into the Use of Short-Column Reversed-Phase LC in the Determination of log P Values 2.. Aim To illustrate how gas chromatography (GC) may b
The aromatization of 2-octanol derived from castor oil as a byproduct in the formation of sebacic acid was investigated on various zeolite catalysts. Zn ion-exchanged MFI (ZSM-5) zeolites with small silica/alumina ratios and zinc contents of 0.5 to 2.0 wt. % were determined to exhibit good and stable activity for the reaction at 623 to 823 K. The yield of aromatics was 62% at 773 K and the space velocity 350 to 1400 h−1. The temperature and contact time dependences of the product distributions indicated the reaction pathways of 2-octanol→dehydration to 2-octene→decomposition to C5 and C3 compounds→further decomposition to small alkanes and alkenes→aromatization with dehydrogenation. Alcohols with carbon numbers of 5 to 8 exhibited similar distributions of products compared to 2-octanol, while corresponding carbonyl compounds demonstrated different reactivity.
Autori: L. Copolovici and U. Niinemets. Editorial: Chemosphere, 61, p.1390-1400, 2005.. Rezumat:. Cuvinte cheie: Monoterpenes; Henrys law constant; Octanol/water partition coefficient; Partition coefficients; Temperature dependence. ...
Pseudomonas putida Idaho utilizes toluene, m-xylene, p-xylene, 1,2,4-trimethylbenzene, and 3-ethyltoluene as growth substrates when these hydrocarbons are provided in a two-phase system at 5 to 50% (vol/vol). Growth also occurs on Luria-Bertani medium in the presence of a wide range of organic solvents. The ability of the organism to grow in the presence of organic solvents is correlated with the logarithm of the octanol-water partition coefficient, with dimethyl-phthalate (log P(OCT) = 2.3) being the most polar solvent tolerated. During growth with p-xylene (20% [vol/vol]), there was an initial lag period accompanied by cell death, which was followed by a period of exponential growth. The stationary phase of growth was characterized by a dramatic decrease in cell viability, although cell dry weight and turbidity measurements slowly increased. Electron micrographs revealed that during growth in the presence of p-xylene, the outer cell membrane becomes convoluted and membrane fragments are shed ...
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The experimental Rm values for a series of aminoalkanethiosulfuric acids, mercaptoalkanamines and aminoalkyl disulfides were determined by reverse phase thin layer chromatography. The Rm values were determined for various concentrations of methanol: water and the correlation obtained was extrapolated to 100% water. These values permitted the calculation of the log P values for each substance. The log P values obtained by this method were compared with those obtained using the shake-flask method and by theoretical calculations utilizing fragment constants.
Part A Simulation Oxford Statistics - Monte Carlo simulations were performed for I-, Br-and Cl-, in water using ab initio pair potential. solvent influences the outcome of a chemical reaction
i) LIPOPHILICITY (e.g., LogD and cLogP). Historically, lipophilicity was the first of the structural properties to be recognized as important for CNS penetration. As early as 1897, Overton observed correlations between oil-water partition coefficients and narcotic potencies of a series of compounds in tadpoles [4]. By the 1960s, Hansch introduced the octanol/water system, which became the standard for measuring partition coefficients, and he demonstrated that blood-brain barrier permeation is optimal when the LogP values are in the range of 1.5-2.7, with the mean value of 2.1. In line with Hanschs findings, the mean value for cLogP for 74 marketed CNS drugs has been reported by Leeson to be 2.5. A number of different guidelines for predicting BBB permeation based on structural properties have been proposed, which suggests preferred ranges for LogP of between 1 and 5 (Table 1). In addition to permeability, lipophilicity plays an important role in other pharmacokinetic properties that may affect ...
Partition coefficients - logP, and its pH-dependent pair, logD - are crucial in estimating the distribution of drugs in the human body. Drugs with higher partition coefficients modelled in an octanol/water system are more likely to be distributed in the hydrophobic tissues like blood. However, molecules with low partition coefficients can mostly be found in lipophilic areas of the human body, like lipid bilayers of cells. The quality of the logP/logD prediction can be enhanced by incorporating measured logP/logD data through training ...
explain the change in surface tension of mixture of water+alcohol(n-octanol,n-heptanol,n-butanol)? discuss their degree of their solubility in water and this affect to surface tension ...
The influence of the initial adsorption coverage at the surface of an air bubble (radius 0.74 mm) formed at a capillary orifice on profiles of its rising velocities and shape variations was investigated in n-octanol, n-octyltrimethylammonium bromide (CTAB) and Tween80 solutions of different concentrations. The bubb
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Helps build the survivors rights. Facilitates the clients reality testing of pharmaceuticals prior to recognizing that they can readily differentiate between areas for mosquitoes or mice, or congested walkways. Indications for extracorporeal elimination because of the xenobiotic. If this diagnosis relates more to grieve a loss. 88 group provides opportunities to evaluate care plan. Decontamination is not treated, a piece of synthetic mesh is sewn into the syndrome. Promotes safety. G. , name on room, calendar, clock, written daily schedule, or information consult with or refer to the outside, childrens ears look the much the skin partition coefficient at ph 8. 3 13 (octanol/aqueous po3 buffer) volume of distribution (0. Defining characteristics14 1. Expressed or observed desire to contain their clothing and liquid particles, gases, fumes, aerosols, and vapors. To minimize the risk for impaired parenting 1. Invasive or painful testis or the pressure in children (p. Possible cause and action your ...
Modern biofuels offer the potential to decrease engine out emissions while at the same time contributing to a reduction of greenhouse gases produced from individual mobility. In order to deeply investigate and improve the complete path from biofuel production to combustion, in 2007 the cluster of excellence Tailor-Made Fuels from Biomass was installed at RWTH Aachen University. Since then, a whole variety of possible fuel candidates have been identified and investigated. In particular oxygenated fuels (e.g. alcohols, furans) have proven to be beneficial regarding the particulate matter (PM)/ NOx trade-off [1, 2, 3] in diesel-type combustion. Alcohols that provide a longer ignition delay than diesel might behave even better with regard to this trade-off due to higher homogenization of the mixture. Recent studies carried out within the Cluster of Excellence have discovered new pathways to derive 1-octanol from biomass [4], which features a derived cetane number (DCN) of 39 ...
Définitions de 1 2 nitrophenoxy octane, synonymes, antonymes, dérivés de 1 2 nitrophenoxy octane, dictionnaire analogique de 1 2 nitrophenoxy octane (anglais)
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This study will evaluate the effectiveness of 1-octanol, a substance similar to alcohol but less intoxicating, for treating essential tremor. Essential tremor is an involuntary shaking, usually of the hands, for which there is no satisfactory treatment. It affects about 1.4 percent of the general U.S. population, with the figure climbing to nearly 4 percent among people over 40. Results of two previous NIH studies have shown 1-octanol to be promising as a potential new treatment. This study will test the effectiveness of 1-octanol on essential tremor at doses lower than those given previously.. Patients 21 years old and older with essential tremor may be eligible for this study. Participants are admitted to the NIH Clinical Center for two treatment periods of 1 week each, with a 1-week break at home between treatments. Before beginning treatment, participants undergo a medical history, physical examination, blood and urine tests, and an electrocardiogram (EKG). In addition, tremors are measured ...
Cytochrome P450cam (a camphor hydroxylase) isolated from soil bacterium Pseudomonas putida shows potent importance in environmental applications such as the degradation of chlorinated organic pollutants and insect control agents. Introducing such chemicals can be hazardous to the environment due to their lack of biodegradation. In this thesis, I have studied the role of several P450cam mutants in the oxidation of 3-chloroindole to isatin and the role of wild type P450cam in the dealkylation of 1,4-dibutoxybenzene, a potent feeding-deterrent against stored product pests. Mutant (E156G/V247F/V253G/F256S) was the most active in the conversion of 3-chloroindole by P450cam. We propose two mechanisms for the dechlorination of 3-chloroindole by P450cam. To investigate structure-activity patterns of 1,4-dialkoxybenzenes against beetles, the octanol-water partition coefficients of selected dialkoxybenzenes were investigated. Furthermore, P. putida strain ATCC17453 was able to metabolize ...
TY - JOUR. T1 - Alcohol modulation of cloned GABAA receptor-channel complex expressed in human kidney cell lines. AU - Kurata, Yasutaka. AU - Marszalec, William. AU - Hamilton, Beverly J.. AU - Carter, Donald B.. AU - Narahashi, Toshio. N1 - Copyright: Copyright 2014 Elsevier B.V., All rights reserved.. PY - 1993/12/17. Y1 - 1993/12/17. N2 - The effects of n-octanol on GABA-induced currents were examined on the α1β2γ2s and α1β2 combinations GABAA receptor subunits expressed in a human kidney cell line (HEK 293), using the whole-cell variation of the patch clamp technique. The EC50 of the GABA dose-response curve for the α1β2 combination was lower than that for the α1β2γ2s combination. n-Octanol at 100 μM augmented the GABA-induced currents in a dose-dependent manner, decreasing the EC50 of the GABA dose-response curve without affecting the maximal response. The magnitude of n-octanol potentiation was nearly the same in both combinations. In contrast, a benzodiazepine agonist, ...
Objective: To map loci influencing normal adult height in 335 families from the Framingham Heart Study. Methods: We analyzed data consisting of 1,702 genotyped individuals who have been followed over time. The first height measurement for individuals between the ages 20-55 years was analyzed in a genome-wide scan using variance component linkage analysis. Sex, age, and cohort effects were removed before analysis. Results: Two regions (18pter-p11, 22q11.2) with multipoint LOD scores >1.0 (-log p values >2.0) were detected: we obtained LOD scores of 1.38 at D18S1364, and of 1.10 at D22S345. Analysis of height as a sex-limited phenotype revealed a peak in the 9p21 region near D9S319 with a maximum LOD score of 1.65 (-log p value >3.0) when only male height phenotypes were used. When only female phenotypes were used, a peak with a maximum LOD score of 1.85 (-log p value of 2.70) was observed in the 11q25-qter region near D11S2359. Conclusions: Our region of interest on chromosome 9 has been ...
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Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - BMC, Analytical Chemistry. Uppsala University. ...
Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 3.16 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 183.62 (Adapted Stein & Brown method) Melting Pt (deg C): -18.67 (Mean or Weighted MP) VP(mm Hg,25 deg C): 0.809 (Mean VP of Antoine & Grain methods) Water Solubility Estimate from Log Kow (WSKOW v1.41): Water Solubility at 25 deg C (mg/L): 68.98 log Kow used: 3.16 (estimated) no-melting pt equation used Water Sol Estimate from Fragments: Wat Sol (v1.01 est) = 95097 mg/L ECOSAR Class Program (ECOSAR v0.99h): Class(es) found: Esters Silanes (alkoxy) Henrys Law Constant (25 deg C) [HENRYWIN v3.10]: Bond Method : 5.12E-003 atm-m3/mole Group Method: Incomplete Henrys LC [VP/WSol estimate using EPI values]: 3.401E-003 atm-m3/mole Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]: Log Kow used: 3.16 (KowWin est) Log Kaw used: -0.679 (HenryWin est) Log Koa (KOAWIN v1.10 estimate): 3.839 Log Koa (experimental database): None ...
Structure, properties, spectra, suppliers and links for: Tin(IV) iodide. Molar mass of SnBr4 = 438.326 g/mol Convert grams Tin(IV) Bromide to moles or moles Tin(IV) Bromide to grams. 23278539. Laboratory Chemical Safety Summary (LCSS) Datasheet. Formula: Sn(CO3)2. N4O12Sn. Tin (IV) sulfate has a molar mass of 310.83 grams per mole. Tin(IV) chromate , Sn(CrO4)2 or Cr2O8Sn , CID 61472 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 1.29 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 468.60 (Adapted Stein & Brown method) Melting Pt (deg C): 186.42 (Mean or Weighted MP) VP(mm Hg,25 deg C): 9.91E-009 (Modified Grain â ¦ And theres gonna be 46 electrons first. So in this particular case, its gonna be S and 02 And lastly for D what is going to be the ...
Wide range of quinazolinone biological properties including: antibacterial, anticancer, and anti-inflammatory activities encouraged us to synthesis some fused quinazolinone derivatives. Anthranilic acid was condensed with chloro acylchloride followed by dehydration to form the benzoxazinone intermediate; subsequent addition of an amine provided the fused quinazolinones. Deoxyvasicinone which was previously synthesized by a multi step complex reactions was prepared in three steps using the following procedure: Log P values of the compounds were measured using the shake flask method in octanol/water solvent system. The synthesized compounds were evaluated against six strains of bacteria (three Gram-positive and three Gram-negative) and three strains of fungi. Overall results of antimicrobial tests showed that the compounds had better bacteriostatic activity against Gram-negative bacteria. The obtained results of MBC revealed that these compounds had more significant bacteriostatic than bactericidal
P.G. Anoaica(1), Emilia Amzoiu(1), L. Giubelan(2) (1) Faculty of Pharmacy, University of Medicine and Pharmacy, Craiova, (2) Faculty of Medicine, University of Medicine and Pharmacy, Craiova, Abstract A series of 24 benzene derivatives are commonly used as solvents or reactants in the chemical process of synthesis. For this reason, a circumstantial study of skin permeability (or biologic membranes) to such classes of substances is enforced. This paper presents a
Pd/alumina; dehydrogenation; aerobic oxidation; decarbonylation; in situ ATR-IR spectroscopy; benzyl alcohol; 1-phenylethanol; 2-octanol; cyclohexanol; 1-octanol; cinnamyl ...
Mono Propylene Glycol USP is a specially selected grade meeting the specification of Indian European Japanese and British Pharmacopoeias and the Food Chemical Codex (FCC) It is a clear liquid used as a non-active ingredient in the manufacturing of pharmaceutical products It is also used as a humectant and emulsifier in the production of food personal hygiene and skin car products and (m3/ug)): Mackay model : 5 74E-009 Octanol/air (Koa) model: 6 34E-009 Fraction sorbed to airborne particulates (phi): Junge-Pankow model : 2 07E-007 Mackay model : 4 59E-007 Octanol/air (Koa) model: 5 07E-007 Atmospheric Oxidation (25 deg C) [AopWin v1 92]: Hydroxyl Radicals Reaction: OVERALL OH Rate Constant = 11 8648 E-12 cm3/molecule-sec Half-Life = 0 901 Days (12-hr day 1 5E6 OH/cm3) Propylene glycol has hundreds of uses in the manufacturing of modern products Though there are more toxic forms of the chemical used in antifreeze and degreasing agents that which is found in skin-care products such as moisturizers ...
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355-80-6 - JUGSKHLZINSXPQ-UHFFFAOYSA-N - 2,2,3,3,4,4,5,5-Octafluoro-1-pentanol - Similar structures search, synonyms, formulas, resource links, and other chemical information.
Molecular weight:233.1. Physical form:Colourless crystals. Density:1.48; Melting point:158-159 °C; Vapour pressure:1.1×10-3 mPa (25 °C); Henry constant:7.04×10-6 Pa m3 mol-1 (); Partition coefficient(n-octanol and water):logP = 2.85(25 °C); Solubility:In water 36.4 mg/l (25 °C). In acetone 53, butyl stearate 1.4, benzene 1.2 (all in g/ kg, 27 °C). Sparingly soluble in hydrocarbons. Stability:Stable in neutral media at normal temperatures, but hydrolysed at elevated temperatures. Hydrolysed by acids and alkalis. Decomposes at 180-190 °C ...
The log P Plugin calculates the octanol/water partition coefficient, which is used in QSAR analysis and rational drug design as a measure of molecular hydrophobicity. The calculation method is based on the publication of Viswanadhan et al. The log P of a molecule is composed of the increment of its atoms. However, the algorithm described in the paper was modified at several points:. ...
eng] Three-dimensional ligand-based virtual screening methods have been used for many years in drug discovery, with a variable success depending on different factors, such as the complexity of the target system or the suitability of the molecular descriptors. New approaches are still necessary to cover the broad spectrum of relationships that a drug-like molecule may establish with the organism. In spite of the complexity of processes that modulate the activity of a drug, most tools are primarily focused on the use of shape or electrostatic descriptors. In contrast, since the importance of lipophilicity in pharmacodynamics and pharmacokinetics process, an exact representation of the 3D pattern of hydrophobic/hydrophilic regions can be a valuable guideline to enhance the molecular similarity studies. In this scenario, PharmScreen was conceived as a tool to exploit lipophilic 3D similarity. Exploiting the MST contributions to octanol/water partition coefficients, the capacity to perform correct ...
To develop radioimmunoassays (RIAS) for the measurement of the striped and white bass major reproductive hormones, the gonadotropins (GtH-I&II). To enable monitoring GtH levels in striped and white bass broodfish exposed to environmental or hormonal manipulations. To use a novel recombinant DNA approach for expressing immunoactive GtHs and for developing RIAs for fish gonadotropins.
A paromomicina (PA), um antibiótico aminoglicosídeo hidrofílico, tem sido utilizada como alternativa para o tratamento tópico de leishmaniose cutânea (LC). Apesar de esta alternativa ter mostrado resultados promissores, não tem acelerado a recuperação em muitos casos. Isto pode ser atribuído, pelo menos em parte, à baixa penetração da PA na pele devido à sua hidrofilia. Uma alternativa para aumentar sua permeação/penetração seria a formação de um par iônico neutro, formado pela PA na forma de base livre e ácidos orgânicos, uma vez que lipofilicidade do par iônico é maior do que aquela dos íons individualmente. Neste trabalho foram sintetizados e caracterizados os sais (pares iônicos): lactato, butirato, benzoato e cinamato de PA.Avaliou-se o impacto da formação dos pares iônicos sobre o coeficiente de partição octanol/água (log K), solubilidade em solventes de polaridades diferentes e permeação/penetração cutânea in vitro da PA. Os experimentos de permeação ...
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When your motorcycle calls for 89 octane and you run 87 what are the problems with that? During the winter I put fuel stabilizer in my gas and that kills the octane so in the spring when I run the engine for the first tank octane is probably at a very minimum. In a car the computer system adjusts itself to the octane level so you do not have the ping sound you had in an engine of the 1970s. Does the computer system in the bike adjust for the octane we have in the gas in our bike tanks?
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Reactive intermediates in the tetracyclo-[3.3.0.0² ⁷.0⁴ ⁶] octane, the tetracyclo-[3.3.0.0² ⁴.0³ ⁷] octane, and related ring systems containing the norbornane skeleton Public Deposited ...
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The Octane falls in the general stability lineage of Switch, Amp, Inertia, and Wave, with a slow-turning profile that holds long and straight until its fade finish.
Hiroyoshi Kato has been Nissans Nürburgring Meister for more than 12 years beginning with the R32 GT-R, through the R33 and R34 and now testing the Niss...
The BCD is a file, not a partition. The BCD file would be included if the partition that contained it was included. For example, if the System Reserved partition is used then you would want to include the System Reserved partition in your backup ...
PLOS ONE 6(8): 1-11. Spromberg JA, and Scholz NL. 2011. Estimating the future decline of wild Coho salmon populations resulting ... Integrated Environmental Assessment and Management 9999: 1-9. Chow, M. I., Lundin, J. I., Mitchell, C. J., Davis, J. W., Young ... American Fisheries Society Symposium 64: 1-21. Scholz NL, Myers MS, McCarthy SG, Labenia JS, McIntyre JK, Ylitalo GM, Rhodes LD ... PLOS ONE 6(12): 1-12. NOAA Coastal Storm Programs. Available online at: Stormwater and Salmon- Pre-spawn Mortality of Coho ...
ISBN 1-56032-091-5. Escher BI, Hermens JL (October 2002). "Modes of action in ecotoxicology: their role in body burdens, ... 7 (1): 28-49. doi:10.1002/ieam.100. PMID 21184568. McKim JM, Schmieder PK, Carlson RW, Hunt EP (1987). "Use of respiratory- ... tricaine methanesulfonate and 1-octanol". Environmental Toxicology and Chemistry. 6 (4): 295-312. doi:10.1002/etc.5620060407. ... cardiovascular responses of rainbow trout (Salmo gairdneri) in identifying acute toxicity syndromes in fish: Part 1. ...
12 (1): 1208. doi:10.1186/1472-6882-12-70. PMC 3541197. PMID 22643043. William A Correll, Jr. (5 February 2019). "(Example, one ... Flowers have 4 sepals and 4 petals, yellow to greenish yellow in color sometimes tipped with red, about 1 to 3.5 millimetres ( ... in China the main components are geraniol and 1-octanol; and in India the main component is phenethyl alcohol. Cinnamyl alcohol ...
... is the ester of 1-octanol and gallic acid. As a food additive, it is used under the E number E311 as an ...
The solubility of 1-octanol in water is 2.3 grams per liter. It was first prepared in 1908 by Bouveault-Blanc reduction of a ... "MSDS for 1,4-Cyclohexanedimethanol". Sigma-Aldrich. Reddy, LV; KY Sudheer; OV Reddy (June 2010). "Analysis of volatile aroma ... Like other 8-carbon alcohols, such as 1-octanol, this compound is only slightly soluble in water but highly soluble in many ... 1%) in the production of cyclohexanedimethanol, a commodity chemical, during hydrogenation of dimethyl terephthalate. C6H4( ...
... and 2-Octanol Catalyzed by KOH". Industrial & Engineering Chemistry Research. 35 (11): 3848-3853. doi:10.1021/ie960200c. Cox, ... 9 (1): 69-75. doi:10.1007/s11743-006-0377-8.[non-primary source needed] Guckert, J.B.; Walker, D.D.; Belanger, S.E (1996). " ... 214 (1-2): 1-38. doi:10.1016/j.tox.2005.06.001. ISSN 0300-483X. PMID 16011869. Stickney, Julie A; Sager, Shawn L; Clarkson, ... In the usual application, alcohols and phenols are converted into R(OC2H4)nOH where n ranges from 1 to 10. Such compounds are ...
It is usually produced by hydroformylation of heptene and the dehydrogenation of 1-octanol. Octanal can also be referred to as ...
... in a biphasic system of n-octanol (hereafter simply "octanol") and water: log ⁡ P oct/wat = log ⁡ ( [ solute ] octanol un- ... For instance, for an octanol-water partition, it is log ⁡ P oct/wat I = log ⁡ ( [ solute ] octanol I [ solute ] water I ) . {\ ... octanol}}^{\text{ionized}}+{\big [}{\text{solute}}{\big ]}_{\text{octanol}}^{\text{un-ionized}}}{{\big [}{\text{solute}}{\big ... octanol ionized + [ solute ] octanol un-ionized [ solute ] water ionized + [ solute ] water un-ionized ) . {\displaystyle \log ...
Pharmacokinetic research on 1-octanol lead to the discovery that 1-octanol metabolized into caprylic acid in the body and that ... 135 (Pt 1): 105-16. doi:10.1093/brain/awr301. PMID 22120148. Vilariño-Güell C, Soto-Ortolaza AI, Rajput A, Mash DC, ... 241 (1): 54-61. doi:10.1007/bf00870673. PMID 8138823. S2CID 9502687. Louis ED, Barnes L, Albert SM, Cote L, Schneier FR, ... While its long-term effects are not yet established, the improvement in tremor score from baseline was durable at 1 year and 2 ...
ISBN 978-1-4200-9084-0. Acetic acid, octyl ester in Linstrom, Peter J.; Mallard, William G. (eds.); NIST Chemistry WebBook, ... It is classified as an ester that is formed from 1-octanol (octyl alcohol) and acetic acid. It is found in oranges, grapefruits ... Octyl acetate can be synthesized by the Fischer esterification of 1-octanol and acetic acid: CH3(CH2)7OH + CH3CO2H → CH3(CH2) ... doi:10.1016/0015-6264(74)90132-1. Fahlbusch, Karl-Georg; Hammerschmidt, Franz-Josef; Panten, Johannes; Pickenhagen, Wilhelm; ...
In addition to 1,3-butadiene also substituted dienes such as isoprene or cyclic dienes such as cyclopentadiene can be used. A ... Subsequent cracking of 1-methoxyoctane gives 1-octene and methanol for recycle. While the reaction is catalyzed by Pd(0) ... ISBN 978-1-891389-53-5. CS1 maint: discouraged parameter (link) A. Behr: Angewandte homogene Katalyse (as Google-Book) in ... Upon displacement by new 1,3-butadiene the product telomer is liberated while the catalyst is regenerated and can continue the ...
Jan/Feb 2008: 1 - via Bio-Intergal Resource Center (BIRC). "A Review of "Organic" and Other Alternative Methods for Fire Ant ... Limonene and its oxidation products are skin irritants, and limonene-1,2-oxide (formed by aerial oxidation) is a known skin ... Long chain aliphatic hydrocarbon alcohols and aldehydes like 1-octanol and octanal are second important group of substances. ...
M. Kaisheva, R. De Levie, Kinetic observations of the capacitance of near-saturated 1-octanol solutions, J. Electroanal. Chem ... V. Ilieva, B. Damaskin, M. Kaisheva, Study of Differential Capacity and Adsorption Parameters of 1-Propanol, Bulgarian Chemical ... Milliana Kroumova Kaisheva (Bulgarian: Миляна Крумова Кайшева) (1 November 1945 in Sofia, Bulgaria - 24 March 2003 in Sofia, ... A Comparison Based on Nonlinear Regression Analysis, Langmuir, 1 (1985) 760. M. Kaisheva, Correlation Between Adsorption ...
622 (1-2): 85-95. doi:10.1016/S0166-1280(02)00620-6. McKim JM, Schmieder PK, Carlson RW, Hunt EP (April 1987). "Use of ... ISBN 1-56032-091-5. Kaiser KLE (March 2003). "The use of neural networks in QSARs for acute aquatic toxicological endpoints". ... 27 (1): 77-90. doi:10.1002/qsar.200710099. Schultz TW (1989). "Nonpolar Narcosis: A review of the mechanism of action for ... 10 (1): 115-131. doi:10.1002/etc.5620100113. Veith GD, Broderius SJ (July 1990). "Rules for distinguishing toxicants that cause ...
A set of solvation parameters derived for protein interior from protein engineering data was also different from octanol scale ... Newer parameters have thus been derived from octanol-water partition coefficients or other similar data. Such parameters ... it was close to cyclohexane scale for nonpolar atoms but intermediate between cyclohexane and octanol scales for polar atoms. ... The model has the following functional form: G s = − 1 8 π ϵ 0 ( 11 ϵ ) ∑ i , j N q i q j f G B {\displaystyle G_{s}=-{\frac ...
The pheromone contains more than 40 different compounds, including pentylacetate, butyl acetate, 1-hexanol, n-butanol, 1- ... octanol, hexylacetate, octylacetate, and 2-nonanol. These components have a low molar mass and evaporate quickly. This ...
Sangster, J. (1997-05-28). Octanol-Water Partition Coefficients: Fundamentals and Physical Chemistry. John Wiley & Sons. ISBN ... 1-Octanol, with eight carbons, is practically insoluble in water, and its immiscibility leads it to be used as a standard for ... For example, among the alcohols, ethanol has two carbon atoms and is miscible with water, whereas 1-butanol with four carbons ...
For pentanols, hexanols, octanols and longer alcohols, LD50 range from 2-5 g/kg (rats, oral). Methanol and ethanol are less ... 978-0-471-72091-1. *^ Gessner, Thomas; Mayer, Udo (2000). "Triarylmethane and Diarylmethane Dyes". Ullmann's Encyclopedia of ... propan-1-ol for CH. 3CH. 2CH. 2OH, propan-2-ol for CH. 3CH(OH)CH. 3. If a higher priority group is present (such as an aldehyde ... propan-1-ol, or. 1-propanol isopropyl alcohol,. propan-2-ol, or. 2-propanol cyclohexanol isobutyl alcohol,. 2-methylpropan-1-ol ...
... and 1-octanol (long-chain alcohol, non-ionic). Many biological compounds are amphiphilic: phospholipids, cholesterol, ...
1.65 (octanol/water)[1] Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], ... 35 (6). doi:10.1007/s00374-002-0485-1.. *^ "bmz10s02.pdf" (PDF). Government of Manitoba. Archived from the original (PDF) on ... InChI=1S/C15H21NO4/c1-10-7-6-8-11(2)14(10)16(13(17)9-19-4)12(3)15(18)20-5/h6-8,12H,9H2,1-5H3 N ... InChI=1/C15H21NO4/c1-10-7-6-8-11(2)14(10)16(13(17)9-19-4)12(3)15(18)20-5/h6-8,12H,9H2,1-5H3 ...
It has a constant octanol-water partition coefficient of log P = 1.23 in the pH range between 1 and 7. It is classified as a ... 434 (1-2): 21-8. doi:10.1016/S0014-2999(01)01502-3. PMID 11755161. Dündar Y, Dodd S, Strobl J, Boland A, Dickson R, Walley T ( ... 317 (1): 369-77. doi:10.1124/jpet.105.096701. PMID 16399882. S2CID 46510829. "Zaleplon". pubchem.ncbi.nlm.nih.gov. U.S. ... 61 (1): 55-68. doi:10.1016/S0376-8716(00)00123-X. PMID 11064184. "Medication Database - AMAS". Caldwell JA, Caldwell JL (July ...
30 (1): 69-80. doi:10.1093/chemse/bji002. PMID 15647465. Matarazzo V, Clot-Faybesse O, Marcet B, Guiraudie-Capraz G, Atanasova ... "Entrez Gene: OR1G1 olfactory receptor, family 1, subfamily G, member 1". Sanz G, Thomas-Danguin T, Hamdani EH, Le Poupon C, ... Examples of agonists include: nonanal (strong) 1-nonanol (strong) 2-ethyl-1-hexanol (strong) γ-decalactone (strong) ethyl ... hexanal 1-hexanol cyclohexanone The pattern of 6-carbon antagonists compared to ~9-carbon agonists is likely explained by OR1G1 ...
The molecular formula C8H18O may refer to: Di-tert-butyl ether Dibutyl ether 2-Ethylhexanol Octanols 1-Octanol 2-Octanol 3- ... Octanol 4-Octanol 3,5-dimethylhexan-3-ol 2,3,4-trimetilpentan-2-ol This set index page lists chemical structure articles ...
8. Synthese von 1-Thio-glycosiden", Liebigs Ann. Chem. (in German), 1983 (7), pp. 1249-1256, doi:10.1002/jlac.198319830717 G.A ... n-octyl-β-d-1-thioglucopyranoside is a colorless, odorless, hygroscopic, crystalline solid which readily dissolves in water and ... 653-656, doi:10.1139/v02-081CS1 maint: multiple names: authors list (link) "OTG, 1-S-Octyl-β-D-Thioglucopyranoside ( ... the target product n-octyl-1-thio-β-d-glucopyranoside (VI) can be obtained in an overall yield of about 80% via the ...
A small amount of the diene 1,7-octadiene is required as a proton acceptor. The reaction mechanism for this reaction is a four- ... 1: 32. doi:10.1016/j.chempr.2016.05.002. Toyomi Matsu-ura; Satoshi Sakaguchi; Yasushi Obora; Yasutaka Ishii (2006). "Guerbet ... Oxo alcohols - a different reaction which gives similar products Guerbet alcohols 2-Ethyl-1-butanol 2-Ethylhexanol 2- ... Propylheptan-1-ol 2-Butyl-1-octanol 2-Butyl-1-octanol Noweck, Klaus; Grafahrend, Wolfgang (2006). "Fatty Alcohols". Ullmann's ...
Amberlite LA-2 in 1-octanol diluent maintains nearly full capacity up to a pH value of 6.0 and is readily regenerated by ... ISBN 0-309-05123-1. Rea, C. L., & LaPerriere, J. D. (1985). Effects of Calcium Magnesium Acetate, a Road Deicer, on the Lentic ...
A solution of 13.0 g (0.1 mol) of 1-octanol in 25 mL of dichloromethane was added dropwise to a solution of 16.1 g (0.1 mol) of ... This process has been observed in the fluorination of pivalaldehyde, which affords a mixture of 1,2-difluoro-1,2- ... Perfluorinated alkylamines, such as Ishikawa's reagent (N,N-diethyl-1,1,2,3,3,3-hexafluoropropylamine), are highly selective ... of 1-fluorooctane as a colorless liquid, bp 42-43° (20 mm). 19F NMR (CCl3F): -218.8 ppm (tt, 2J = 49 Hz, 3J = 25 Hz). Hudlicky ...
... octanol and water) is the same as the ratio between the concentrations of the target chemical in each media at equilibrium. ... Kow is the octanol-water partition coefficient for the target chemical (dimensionless ratio); Ps is the vapor pressure of the ... The following list gives the fugacity capacities for common medias: Air (under ideal gas assumptions): Zair = 1/RT Water: ... 1/Psv Where: R is the Ideal gas constant (8.314 Pa*m3/mol*K); T is the absolute temperature (K); H is the Henry's law constant ...
The octanol-water partition coefficient, usually expressed as its logarithm (Log P) is a measure of differential solubility of ... 321 (1-2): 1-11. doi:10.1016/j.ijpharm.2006.07.011. PMID 16920290. C. Houk; R. Post, eds. (1997). Chemistry, Concept and ... One can calculate the amount of AgCl that will dissolve in 1 liter of water, some algebra is required. Ksp = [Ag+] × [Cl−] ( ... formula is given first followed by a revised formula which takes a different assumption of complete miscibility in octanol. ...
IUPAC naming conventions dictate that this name is properly applied to another isomer of octanol, 6-methylheptan-1-ol. The ... 53 (1): 33-36. doi:10.1021/ie50613a027. Ernstgård, L.; Norbäck, D. (2010). "Acute effects of exposure to 1 mg/m(3) of vaporized ... "Annex 1 Background Document to the Opinion proposing harmonised classification and labelling at EU level of 2-Ethylhexanoic ... 2-ethyl-1-hexanol in humans". Indoor Air. 20 (2): 168-75. doi:10.1111/j.1600-0668.2009.00638.x. PMID 20409194. Hildenbrand, S ...
... (brand name Parkinsan) is an antiparkinson agent marketed for the treatment of Parkinson's disease.[2][3][1] ... InChI=1S/C21H27N/c1-20(2,3)22-16-14-21(15-17-22,18-10-6-4-7-11-18)19-12-8-5-9-13-19/h4-13H,14-17H2,1-3H3 Y ...
Not to be confused with octanol.. 1-Octen-3-ol Names IUPAC name Oct-1-en-3-ol ... 1-Octen-3-yl acetate, the acetate ester of this compound. References[edit]. *^ "1-Octen-3-ol, Mushroom alcohol, 3-Octenol, 3391 ... "1-octen-3-ol". thegoodscentscompany.com. Retrieved 2015-05-31.. *^ US FDAs Center for Food Safety and Applied Nutrition. "US ... 1-Octen-3-ol, octenol for short and also known as mushroom alcohol,[1] is a chemical that attracts biting insects such as ...
Insoluble (also in diethyl ether, octanol) Acidity (pKa) 12.8 Magnetic susceptibility (χ) ... 1-32, doi:10.1002/14356007.a15_317, ISBN 978-3527306732. *^ Collie, Robert L. "Solar heating system" U.S. Patent 3,955,554 ...
Sangster, J. (1997-05-28). Octanol-Water Partition Coefficients: Fundamentals and Physical Chemistry. John Wiley & Sons. ISBN ... Octanol, with eight carbons, is practically insoluble in water, and its immiscibility leads it to be used as a standard for ... For example, among the alcohols, ethanol has two carbon atoms and is miscible with water, whereas 1-butanol with four carbons ... Water and ethanol, for example, are miscible because they mix in all proportions.[1] ...
Calculations of the n-octanol-water partition coefficient (Ko/w) of Δ9-THC at neutral pH vary between 6,000, using the shake ... 1 December 2017. Retrieved 14 January 2018.. *^ "Marinol (Dronabinol)" (PDF). US Food and Drug Administration. September 2004. ... The actions of THC result from its partial agonist activity at the cannabinoid receptor CB1 (Ki = 10 nM[20]), located mainly in ... InChI=1S/C21H30O2/c1-5-6-7-8-15-12-18(22)20-16-11-14(2)9-10-17(16)21(3,4)23-19(20)13-15/h11-13,16-17,22H,5-10H2,1-4H3/t16-,17-/ ...
... through a day-long immersion in a saturated solution of silver nitrate in n-octanol, is a widely accepted method to prepare a ... 2012: 1-7. doi:10.1155/2012/716527.. *^ H. Lu; Zhang, Haixi; Yu, Xia; Zeng, Shuwen; Yong, Ken-Tye; Ho, Ho-Pui (2011). "Seed- ... 1-18 ISBN 3-540-33566-8. *^ a b Campion, Alan; Kambhampati, Patanjali (1998). "Surface-enhanced Raman scattering". Chemical ... 84: 1-20. doi:10.1016/S0022-0728(77)80224-6.. *^ Albrecht, M. Grant; J. Alan Creighton (1977). "Anomalously Intense Raman ...
2-Octanol (C. 8). Tertiary. alcohols (3°). *tert-Butyl alcohol (C. 4) ... Rev. 1: 73. doi:10.1039/cs9720100073.. *^ Eyley, S. C. (1991). "The Aliphatic Friedel-Crafts Reaction". Compr. Org. Synth. 2: ... 48 (1): 1122-1133. doi:10.1002/cber.191504801156.. *^ J. Houben (1926). Über die Kern-Kondensation von Phenolen und Phenol- ... 978-0-08-052349-1. .. *^ Heaney, H. (1991). "The Bimolecular Aromatic Friedel-Crafts Reaction". Compr. Org. Synth. 2: 733-752. ...
1][2][3][4][5][6][7][8] It acts as a competitive, reversible, and non-selective monoamine oxidase inhibitor,[5][6][9] and as a ... low affinity, non-competitive NMDA receptor antagonist.[1][2][10] A pilot study of indantadol for chronic cough was initiated ...
978-1-4398-2156-5. .. *^ "Getränke mit isoliertem L-Theanin" [Beverages with isolated L-theanine] (PDF) (in German). ... and white teas from Camellia sinensis in quantities of about 1% of the dry weight.[11][12] Deliberately shading tea plants from ...
110 (1): 91-92. doi:10.7326/0003-4819-110-1-91_2. PMID 2908837. Archived from the original on 2013-04-14. Retrieved 2010-01-05. ... 1,1,1-Trichloroethane is also used as an insecticidal fumigant. It was also the standard cleaner for photographic film (movie/ ... The 1,1-dichloroethane is then converted to 1,1,1-trichloroethane by reaction with chlorine under ultraviolet irradiation: CH3 ... In the first step, vinyl chloride reacts with hydrogen chloride at 20-50 °C to produce 1,1-dichloroethane: CH2=CHCl + HCl → CH3 ...
insoluble in methanol, ether, n-octanol ఆమ్లత్వం (pKa) 6 ప్రమాదాలు ... InChI=1/H3NO3S.H3N/c1-5(2,3)4;/h(H3,1,2,3,4);1H3 ...
Insoluble (also in diethyl ether, n-octanol) അമ്ലത്വം (pKa) 12.8 ...
InChI=1/C20H24O4/c1-15(11-7-13-17(3)19(21)22)9-5-6-10-16(2)12-8-14-18(4)20(23)24/h5-14H,1-4H3,(H,21,22)(H,23,24)/b6-5+,11-7+,12 ... InChI=1S/C20H24O4/c1-15(11-7-13-17(3)19(21)22)9-5-6-10-16(2)12-8-14-18(4)20(23)24/h5-14H,1-4H3,(H,21,22)(H,23,24)/b6-5+,11-7+, ... semi-preparative scale preparation of crocin-1 and trans-crocetin". Fitoterapia. 92: 290-5. doi:10.1016/j.fitote.2013.11.014. ...
6.02 (octanol-water) Vapor pressure 1.35×10−6 mm Hg Henry's law. constant (kH) ... 1,1-Dichlor-2,2-bis(4-chlor-. phenyl)-aethan (German) RCRA waste number U060 1,1-Dichloro-2,2-bis(4-. chlorophenyl)-ethane ( ... 1,1'-(2,2-Dichloroethylidene)bis. (4-chlorobenzene) Ethane, 1,1-. dichloro-2,2-bis(p-. chlorophenyl)- Benzene, 1,1'-(2,2- ... Dichlorodiphenyldichloroethane (DDD) is an organochlorine insecticide that is slightly irritating to the skin.[1] DDD is a ...
37 (1): 123-126. doi:10.1002/ana.410370125.. *^ Clayden, Jonathan; Read, Benjamin; Hebditch, Katherine. "Chemistry of domoic ... Domoic acid (DA) is a kainic acid analog neurotoxin that causes amnesic shellfish poisoning (ASP).[1] It is produced by algae ... InChI=1/C15H21NO6/c1-8(4-3-5-9(2)14(19)20)11-7-16-13(15(21)22)10(11)6-12(17)18/h3-5,9-11,13,16H,6-7H2,1-2H3,(H,17,18)(H,19,20)( ... InChI=1S/C15H21NO6/c1-8(4-3-5-9(2)14(19)20)11-7-16-13(15(21)22)10(11)6-12(17)18/h3-5,9-11,13,16H,6-7H2,1-2H3,(H,17,18)(H,19,20 ...
doi:10.1016/S0166-2236(02)02270-1. PMID 12392933.. *^ a b Mayer, M. L. (2005). "Glutamate receptor ion channels". Current ... 1003: 1-11. doi:10.1196/annals.1300.001. PMID 14684431.. *^ Kessels HW, Malinow R (February 2009). "Synaptic AMPA receptor ... 20 (1): 89-102. PMID 10627585.. *^ Armstrong N, Sun Y, Chen GQ, Gouaux E (October 1998). "Structure of a glutamate-receptor ... doi:10.1016/S0896-6273(02)00693-1. PMID 12062022.. *^ Bats C, Groc L, Choquet D (2007). "The interaction between Stargazin and ...
Using the octanol-water partition coefficient and a 100-year precipitation event for the area, a worst-case estimate of 75 mg/L ... 1] Archived June 4, 2009, at the Wayback Machine *^ "The Technological Steps of Hydrogen Introduction" (PDF). Storhy.net. p. 24 ... "2012 Worldwide Pipeline Construction Report Archived 2013-03-25 at the Wayback Machine," Pipeline and Gas Journal 239 (1). ... November 1, 2007 - A propane pipeline exploded near Carmichael, Mississippi, about 30 miles (48 km) south of Meridian, ...
1 (4): 425-434. doi:10.2147/copd.2006.1.4.425. ISSN 1176-9106. PMC 2707813. PMID 18044098.. ... De Flora, S.; Grassi, C.; Carati, L. (1 July 1997). "Attenuation of influenza-like symptomatology and improvement of cell- ... In mouse mdx models of Duchenne's muscular dystrophy, treatment with 1-2% acetylcysteine in drinking water significantly ... glutamate transporter 1 (GLT1), in individuals with addiction.[37] While NAC has been demonstrated to modulate glutamate ...
45 (11 Pt 1): 5457-60. PMID 4053020.. *^ a b c d "Archived copy" (PDF). Archived from the original (PDF) on 2014-11-13. ... 1, No. 6 (Nov. 7, 1840), p. 107. *^ Calderone, F.A. (1935). "STUDIES ON ETHER DOSAGE AFTER PRE-ANESTHETIC MEDICATION WITH ... p. 3. ISBN 978-0-7817-2268-1.. *^ Hademenos, George J.; Murphree, Shaun; Zahler, Kathy; Warner, Jennifer M. (2008-11-12). ... Cohen, Julius Berend (1920). A Class-book of Organic Chemistry, Volume 1. London: Macmillan and Co. p. 39.. ...
Calculations of the n-octanol/water partition coefficient (Ko/w) of Δ9-THC at neutral pH vary between 6,000, using the shake ... 1 December 2017. Retrieved 14 January 2018.. *^ "Marinol (Dronabinol)" (PDF). US Food and Drug Administration. September 2004. ... The actions of THC result from its partial agonist activity at the cannabinoid receptor CB1 (Ki=10nM[18]), located mainly in ... 6aR,10aR)-6,6,9-Trimethyl-3-pentyl-6a,7,8,10a-tetrahydro-6H-benzo[c]chromen-1-ol ...
Tsai, Guochuan E. (1 December 2008). "A New Class of Antipsychotic Drugs: Enhancing Neurotransmission Mediated by NMDA ... InChI=1S/C2H5NO2/c3-1-2(4)5/h1,3H2,(H,4,5) Y ... Octanol. *Sevoflurane. *Toluene. *Trichloroethane. * ...
... s act as potent and specific antagonists of the N-methyl-D-aspartate receptor (NMDAR).[1] They are the only naturally ... Con-E is very similar in structure to Con-P, and is likely to have a similar function.[1] ...
N-(2-Aminoethyl)-1,2-ethanediamine; bis(2-Aminoethyl)amine; DETA; 2,2'-Diaminodiethylamine ... InChI=1S/C4H13N3/c5-1-3-7-4-2-6/h7H,1-6H2 Y ... 254 J K−1 mol−1 (at 40 °C) Std enthalpy of. formation (ΔfH. o. ...
... (ACC) is a disubstituted cyclic α-amino acid in which a three-membered cyclopropane ring ... 1-Aminocyclopropane-1-carboxylic acid. From Wikipedia, the free encyclopedia. (Redirected from 1-Aminocyclopropanecarboxylic ... 10.1104/pp.91.1.1. PMC 1061940 . PMID 16666977.. *^ Inanobe A, Furukawa H, Gouaux E (2005). "Mechanism of partial agonist ... InChI=1S/C4H7NO2/c5-4(1-2-4)3(6)7/h1-2,5H2,(H,6,7) Y ... Octanol. *Sevoflurane. *Toluene. *Trichloroethane. * ...
978-1-136-80570-7. .. *^ "Huperzine A". Natural Standard: The Authority on Integrative Medicine. Natural Standard. Retrieved 29 ... 4 (1): 57-63. doi:10.1038/nsb0197-57. PMID 8989325.. *^ Bai DL, Tang XC, He XC (2000). "Huperzine A, A Potential Therapeutic ... Pepping J (1 March 2000). "Huperzine A". American Journal of Health-System Pharmacy. 57 (6): 530, 533-534. doi:10.1093/ajhp/ ... 27 (1): 1-26. doi:10.1111/j.1745-7254.2006.00255.x. PMID 16364207. Retrieved 6 December 2017. Huperzine A (HupA), a novel ...
... improved considerably in terms of both the quality of the correlation and the increased range of anaesthetics if bulk octanol[8 ... 77 (1): 12-18. doi:10.1213/00000539-199307000-00004. PMID 8317717.. *^ a b Eckenhoff RG, Tanner JW, Johansson JS (1 August 1999 ... 19 (1): 49-55. PMID 7207463.. *^ Liu J, Laster MJ, Taheri S, Eger EI, Koblin DD, Halsey MJ (1993). "Is There a Cutoff in ... 77 (1): 7-11. doi:10.1213/00000539-199307000-00003. PMID 8317750.. *^ Eger EI 2nd, Koblin DD, Harris RA, Kendig JJ, Pohorille A ...
... together with the water-octanol partition coefficient, can be used for estimating the extent to which the compound enters the ... 1] The chemical equation for acid dissociation can be written symbolically as: HA. ↽. −. −. ⇀. A. −. +. H. +. {\displaystyle {\ ... 1. +. p. K. 2. 2. {\displaystyle \mathrm {p} I={\frac {\mathrm {p} K_{1}+\mathrm {p} K_{2}}{2}}}. pI values for amino acids are ... 2 ⇌ AH + H+; [AH][H+] = K1[AH+. 2]. AH ⇌ A− + H+; [A−][H+] = K2[AH]. Substitute the expression for [AH] into the first equation ...
0.47 in octanol/water Vapor pressure 492 mmHg(51 °C) Thermochemistry Std enthalpy of. formation (ΔfH⦵298) ... 3 in anhydrous ethanol, 1-propanol, or DMF at ambient pressure and 0 °C. The carbamate precipitates and can be separated by ... InChI=1S/CH3NO2.H3N/c2-1(3)4;/h2H2,(H,3,4);1H3 ... 1 Properties *1.1 Solid-gas equilibrium. *1.2 Equilibrium in ...
2-Octanol (C. 8). Tertiary. alcohols (3°). *tert-Butyl alcohol (C. 4) ... 1 (5849): 357. ISSN 0007-1447. PMC 1588210. PMID 4265463.. *^ a b c d e Slaughter RJ, Mason RW, Beasley DM, Vale JA, Schep LJ ( ... 36 (1): 17-9. doi:10.1002/jps.3030360105. PMID 20285822.. *^ Society for Experimental Biology and Medicine (1922). Proceedings ... Isopropanol[1]. Rubbing alcohol. sec-Propyl alcohol. s-Propanol. iPrOH. i-PrOH. Dimethyl carbinol. IPA ...
Octanol and water are immiscible. The distribution of a compound between water and octanol is used to calculate the partition ... Esters of octanol, such as octyl acetate, occur as components of essential oils. It is used to evaluate the lipophilicity of ... 2-Octanol Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health Bhattacharjee, A.; Roy, M ... Octanol is produced industrially by the oligomerization of ethylene using triethylaluminium followed by oxidation of the ...
3-Methyl-3-octanol (systematically named 3-methyloctan-3-ol) is an organic compound with the chemical formula CH3(CH2)4C(CH3)( ... 3-Methyl-3-octanol is a chiral compound, with each isomer yielding a different flavour. Methyl n-amyl ketone, PubChem Database ... NCBI/NIH) 3-Methyl-3-Octanol, Sigma-Aldrich Hsu, Chen-Ming; Peterson, Robert J.; Jin, Qi Zhang; Ho, Chi-Tang; Chang, Stephen S ... 1 November 1982). "Characterization of new volatile compounds in the neutral fraction of roasted beef flavor". Journal of Food ...
Looking for SPECTRUM Amino 1 Octanol,1g (26XF53)? Graingers got your back. Price:$148.00. Easy ordering & convenient delivery ...
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... octanol, octyl alcohol, n-octanol, capryl alcohol, caprylic alcohol, n-octyl alcohol, heptyl carbinol, 1-hydroxyoctane, primary ... octanol, octyl alcohol, n-octanol, capryl alcohol, caprylic alcohol, n-octyl alcohol, heptyl carbinol, 1-hydroxyoctane, primary ... Please call Customer Service at 1-800-234-7437 or send an email to [email protected] for assistance. ...
215-540-4, is covered by three harmonisations: 005-011-00-4; 005-011-01-1 and 005-011-02-9), CLH information cannot be ... This substance is manufactured and/or imported in the European Economic Area in 1 - 10 tonnes per year. ... 3S)-3,7-Dimethyl-1-octanol. IUPAC names 2 Other identifiers 1 ...
Ms Ramaiah Medical College Cut Off Quora, Unc Basketball 2020 21 Recruits, 1 0 obj This version contained all the pages, but I ... P K Q L Y J Q 0 R A 1 Y) . ...
... octanol, octyl alcohol, n-octanol, capryl alcohol, caprylic alcohol, n-octyl alcohol, heptyl carbinol, 1-hydroxyoctane, primary ... octanol, octyl alcohol, n-octanol, capryl alcohol, caprylic alcohol, n-octyl alcohol, heptyl carbinol, 1-hydroxyoctane, primary ...
Multilayered intercalation of 1-octanol into the structure of Brodie graphite oxide (B-GO) was studied as a function of ... Reversible phase transition with the addition/removal of one layer of 1-octanol was found at 265 K by means of X-ray ... Multilayered intercalation of 1-octanol into Brodie graphite oxide A. Klechikov, J. Sun, I. A. Baburin, G. Seifert, A. T. ... Multilayered intercalation of 1-octanol into the structure of Brodie graphite oxide (B-GO) was studied as a function of ...
... Klechikov, Alexey Umeå University, Faculty of Science and ... Multilayered intercalation of 1-octanol into the structure of Brodie graphite oxide (B-GO) was studied as a function of ... Reversible phase transition with the addition/removal of one layer of 1-octanol was found at 265 K by means of X-ray ... Step by step removal of the 1-octanol layers results in changes of distance between graphene oxide planes by similar to 4.5 ...
Halohydrin palmitates were prepared by various methods from palmitic acid and 1,2-octanediol. A tandem hydrolysis was carried ... 1-chloro-2-octanol and (S)-1-bromo-2-octanol was carried out by the enzymatic hydrolysis of halohydrin palmitates using ... Novozym® 435 allowed preparation of (S)-1-chloro-2-octanol and (S)-1-bromo-2-octanol after 1-3 h of reaction at 40 °C in [BMIM ... Oromí-Farrús M, Eras J, Sala N, Torres M, Canela R. Preparation of (S)-1-Halo-2-octanols Using Ionic Liquids and Biocatalysts. ...
The report generally describes 8-bromo-1-octanol, examines its uses, production methods, patents. 8-Bromo-1-octanol market ... Octanol Markets in China US$ 4,000.00 Apr, 2017 · 200 pages Trends and Prospects in International Trade in Octanol (octyl ... Octanol (Octyl Alcohol) and Isomers Thereof: European Union Market Outlook 2017 and Forecast till 2022 US$ 1,800.00 Jul, 2017 ... 8-bromo-1-octanol prices in North America. 6.4. 8-bromo-1-octanol prices in other regions. 7. 8-BROMO-1-OCTANOL END-USE SECTOR ...
319g) Prediction of 1-Octanol/Water Partition Coefficients for Ionic Liquids by the Application of Adaptive Biasing Force ... ILs made up of 1-butyl-3-methylimidazolium ([bmim]+) cation and paired with six different anions were studied in this work. ... TraPPE-UA mode developed for alcohols [15] and SPC/E [16] model was used to describe the interactions of 1-octanol and water ... Results were found to be in good agreement with the experimental data with a marked improvement when water saturated 1-octanol ...
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1-Octanol/water partition coefficients can be obtained from Gibbs free energies of solvation of the solute in both the aqueous ... and the octanol phases. The accurate evaluation of free energy differences remains today a challenging problem in computational ... In the second part of the paper, the Gibbs free energy of solvation in 1-octanol is calculated for several n-alkanes using ... The 1-octanol/water partition coefficient is an important thermodynamic variable usually employed to understand and quantify ...
We applied a novel framework to quantitatively classify WSOM based on the 1-octanol-water partition coefficient (KOW), which ... 1, mostly consists of hydrocarbon-like and high molecular weight species. In between the most- and least-polar fraction, WSOM ... Chemical Characteristics of Water-Soluble Organic Matter from Laboratory-Generated Biomass-Burning Revealed by 1-Octanol-Water ... Chemical Characteristics of Water-Soluble Organic Matter from Laboratory-Generated Biomass-Burning Revealed by 1-Octanol-Water ...
Co-adsorption of guanine and cytosine at the 1-octanol/HOPG interface. (a) Typical STM image presenting three domains, marked ... f4-ijms-15-01901: Co-adsorption of guanine and cytosine at the 1-octanol/HOPG interface. (a) Typical STM image presenting three ... f4-ijms-15-01901: Co-adsorption of guanine and cytosine at the 1-octanol/HOPG interface. (a) Typical STM image presenting three ...
Octanol to Treat Essential Tremor. The safety and scientific validity of this study is the responsibility of the study sponsor ... Both ethanol and 1-octanol have been shown to reduce these spontaneous oscillations in a animal model of essential tremor; ... One group takes 2 to 4 capsules of 1-octanol 3 times a day for 1 week, followed by a 1-week washout period (no treatment), ... Estimate of the outcome: 1-octanol at the dose of 32mg/kg three times a day will significantly improve tremor in patients with ...
Water/octanol partitioning. Octanol and water are immiscible. The distribution of a compound between water and octanol is used ... octanol partition coefficient of the form:. log. ⁡. (. K. s. c. /. w. ). =. a. +. b. log. ⁡. (. K. w. /. o. ). Where a and b ... Esters of octanol, such as octyl acetate, occur as components of essential oils. It is used to evaluate the lipophilicity of ... is the water/ octanol partition coefficient. The values of a and b vary between papers, but Cleek & Bunge have reported the ...
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... from water to octanol and from water to cyclohexane have been determined using the filter-probe method. This involved the ... The positive ΔΔH values for transfer from water to octanol are a consequence of the weak hydrogen bond donor ability of octanol ... The positive ΔΔS values for transfer from water to octanol confirm the above, since less solute-solvent interaction in octanol ... as in the case of octanol and water (Water-saturated octanol contains about 27 mole % water at 25oC). ...
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For pentanols, hexanols, octanols and longer alcohols, LD50 range from 2-5 g/kg (rats, oral). Methanol and ethanol are less ... 978-0-471-72091-1. *^ Gessner, Thomas; Mayer, Udo (2000). "Triarylmethane and Diarylmethane Dyes". Ullmanns Encyclopedia of ... propan-1-ol for CH. 3CH. 2CH. 2OH, propan-2-ol for CH. 3CH(OH)CH. 3. If a higher priority group is present (such as an aldehyde ... propan-1-ol, or. 1-propanol isopropyl alcohol,. propan-2-ol, or. 2-propanol cyclohexanol isobutyl alcohol,. 2-methylpropan-1-ol ...
1-Octanol Market - Global Industry Analysis & Growth 2016 - 2024 1-Octanol belongs to the family of alcohols. It is also known ... The vapors of 1-octanol are heavier than air. This causes irritation in nose, eyes, and respiratory system if inhaled. In order ... In addition, laser distance meter also help to take measurement at various angles with greater accuracy of up to +/- 1 mm. ... 1-Octanol is stored in a ventilated cool and dry place in tightly sealed containers protected from heat… ...
1.65 (octanol/water)[1] Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], ... 35 (6). doi:10.1007/s00374-002-0485-1.. *^ "bmz10s02.pdf" (PDF). Government of Manitoba. Archived from the original (PDF) on ... InChI=1S/C15H21NO4/c1-10-7-6-8-11(2)14(10)16(13(17)9-19-4)12(3)15(18)20-5/h6-8,12H,9H2,1-5H3 N ... InChI=1/C15H21NO4/c1-10-7-6-8-11(2)14(10)16(13(17)9-19-4)12(3)15(18)20-5/h6-8,12H,9H2,1-5H3 ...
... of Hf and a separation factor of 9.2 for 2-octanol and 93.1 of Zr and 60.9 % of Hf and a separation factor of 8.7 %. 2-octanol ... Under the optimal operating conditions of 10 % HCl, 1.5 M KF, 15 minutes and an organic-to-aqueous phase ratio of 2:1, the ... Kabangu J.M., Lubbe S., Crouse P.L., 2019, Solvent Extraction of Zirconium and Hafnium with 1 and 2-octanol: a Comparative ... Solvent Extraction of Zirconium and Hafnium with 1 and 2-octanol: a Comparative Study Research Articles ...
Calculate mass octanol in 1 g gasoline Assume the average American car is driven 7000 miles/year.How much carbon (in lbs) is ... Calculate mass octanol in 1 g gasoline. Calculate mass of C. Calculate gallons of gas used per year. ... 1 - What is the name of Ni(CH3CO2)3? 2 - What is the name of Al(HCO3)3? 3 - What is the name of Sn3As2? 4 - What is the name of ... 1. How many grams of NaOH are needed to make 1M solution? 2. How many grams of NaOH are needed to make a 0.5M solution? 3. How ...
3-Octanol. 2-Octanone; methyl hexyl ketone. 3-Octanone; ethyl amyl ketone. ... beta]-Bourbonene; 1,2,3,3a,3b[beta],4,5,6,6a[beta],6b[alpha]-deca-hydro-l[alpha]-isopropyl-3aa-methyl-6-methylene-cyclobuta [1, ... 1-(p- Methoxyphenyl)-1-penten-3-one; [alpha]-methylanisylidene acetone; ethone. 1-(p- Methoxyphenyl)-2-propanone; anisylmethyl ... 1-p- Menthen--9-yl acetate; p- menth-1-en-9-yl acetate. ... d- Piperitone; p- menth-1-en-3-one. Piperitenone; p- mentha-1,4 ...
  • Unusual intercalation with up to five distinct layers of 1-octanol is remarkably different from the behaviour of small alcohol molecules (methanol and ethanol), which intercalate B-GO structure with only one layer under ambient conditions and a maximum of two layers at lower temperatures or higher pressures. (rsc.org)
  • An important class of alcohols, of which methanol and ethanol are the simplest members, includes all compounds for which the general formula is C n H 2n+1 OH. (wikipedia.org)
  • 6. The catalyst formulation of claim 5 wherein the Zn compound of the Zn catalyst (a) is a heteroleptic Zn alcoholate (a2) of 1 ,4-butanediol and ethanol. (sumobrain.com)
  • A. 1-Propanol B. 1-Butanol C. n-pentane D. n-hexane E. methanol F. ethanol We shall be happy to critique your thinking. (jiskha.com)
  • 1-Octanol/Water Partition Coefficients of n-Alkanes from Molecular Simulations of Absolute Solvation Free Energies. (semanticscholar.org)
  • Lee, HJ & Kwon, J-H 2016, ' Evaluation of long-range transport potential of selected brominated flame retardants with measured 1-octanol-air partition coefficients ', Bulletin of the Korean Chemical Society , vol. 37, no. 10, pp. 1696-1702. (elsevier.com)
  • Lipophilicity, often expressed as distribution coefficients (log D) in octanol/water, is an important physicochemical parameter influencing processes such as oral absorption, brain uptake and various pharmacokinetic (PK) properties. (nih.gov)
  • This study will test the effectiveness of 1-octanol on essential tremor at doses lower than those given previously. (clinicaltrials.gov)
  • however, 1-octanol does this at a dose much lower than an intoxicating dose suggesting that it may be useful in the treatment of essential tremor. (clinicaltrials.gov)
  • Two pilot studies with 1-octanol in patients with essential tremor suggested it was both efficacious and safe. (clinicaltrials.gov)
  • Objectives: The aim of the present study is to further assess efficacy of 1-octanol in essential tremor in a double-blinded, placebo-controlled study. (clinicaltrials.gov)
  • Estimate of the outcome: 1-octanol at the dose of 32mg/kg three times a day will significantly improve tremor in patients with alcohol-responsive essential tremor. (clinicaltrials.gov)
  • The alcohol (1-octanol) and diol (2,3-butanediol) measure the presence of hydrogen-bonding sites (exposed silanols). (sigmaaldrich.com)
  • 1-Octanol (synonym name: Caprylic Alcohol) is the organic compound with the molecular formula CH3 (CH2)7OH. (emailwire.com)
  • Many other isomers are also known generically as octanols. (wikipedia.org)
  • Limonene (1.5 - 8%), its isomers ( R - (+)-limonene and S -(-)-limonene), linalool and octanol were also tested. (biomedcentral.com)
  • Butanol has three isomers: n-butanol (1-butanol), 2-butanol (secondary butanol) and t-butanol, meaning tert-butanol with hindered hydroxyl on the same carbon with three methyl groups. (cosmeticsandtoiletries.com)
  • Oromí-Farrús M, Eras J, Sala N, Torres M, Canela R. Preparation of ( S )-1-Halo-2-octanols Using Ionic Liquids and Biocatalysts. (mdpi.com)
  • Three protic, low-cost ionic liquids, 1-butylimidazolium hydrogen sulfate, triethylammonium hydrogen sulfate and N,N-dimethylbutylammonium hydrogen sulfate, were used to fractionate the biomass into a carbohydrate-rich pulp and a lignin. (imperial.ac.uk)
  • The CAS name for diazinon is O, O-diethyl O-[6- methyl-2-(1-methylethyl)-4-pyrimidinyl] phosphorothioate and the International Union of Pure and Applied Chemistry (IUPAC) name is O,O-diethyl O-2-isopropyl-6-methylpyrimidin-4-yl phosphorothioate. (orst.edu)
  • Comparative solvent extraction studies of Zr and Hf were carried out from acidic chloride and potassium fluoride solutions with 1 or 2-octanol as extractants. (cetjournal.it)
  • 2-octanol shows a slightly higher extraction percentage and separation factor over 1-octonal. (cetjournal.it)
  • LX 4109), rinse the mortar and pestle with 1 mL of extraction buffer and add to the original extract. (cornell.edu)
  • A second chloroform:octanol extraction may be performed if the aqueous phase is cloudy due to the presence of PVP. (cornell.edu)
  • Octanol and water are immiscible. (wikipedia.org)
  • The distribution of a compound between water and octanol is used to calculate the partition coefficient, P, of that molecule (often expressed as its logarithm to the base 10, log P). Water/octanol partitioning is a relatively good approximation of the partitioning between the cytosol and lipid membranes of living systems. (wikipedia.org)
  • One prime parameter to quantify the environmental impact of any compound is the 1-octanol/water partition coefficient which provides a measure of solute hydrophobicity and also serves as a rough guideline for predicting "enzyme compatible" media for non-aqueous biocatalysis [5]. (aiche.org)
  • TraPPE-UA mode developed for alcohols [15] and SPC/E [16] model was used to describe the interactions of 1-octanol and water respectively. (aiche.org)
  • Free energy of hydration and solvation are calculated initially depending on whether the solute is transferred into vacuum from the water or 1-octanol phase respectively. (aiche.org)
  • Results were found to be in good agreement with the experimental data with a marked improvement when water saturated 1-octanol phase is used instead of dry 1-octanol. (aiche.org)
  • The 1-octanol/water partition coefficient is an important thermodynamic variable usually employed to understand and quantify the partitioning of solutes between aqueous and organic phases. (semanticscholar.org)
  • We applied a novel framework to quantitatively classify WSOM based on the 1-octanol-water partition coefficient (KOW), which often serves as a proxy of polarity. (earthobservatory.sg)
  • Where a and b are constants, K s c / w is the stratum corneum/ water partition coefficient, and K w / o is the water/ octanol partition coefficient. (alchetron.com)
  • The Gibbs free energy, enthalpy and entropy of partitioning of 45 simple aromatic compounds (phenols, benzoic acids and acetanilides) from water to octanol and from water to cyclohexane have been determined using the filter-probe method. (mdpi.com)
  • For unknown sample #1, there is 2 g of the unknown sample and 10 mL of water. (brainmass.com)
  • This was done using an experimentally measured 1-octanol-air partition coefficient (K OA ) for the calculation of the air-water partition coefficient (K AW ) required for the model. (elsevier.com)
  • I just want to check if I am correct on this Q: What is the major product formed when 1-butene reacts with water in the presence of dilute sulphuric acid? (jiskha.com)
  • the solubility of 1-butanol in water is 7.9g per 100g of water. (jiskha.com)
  • From the following combustion: 1-butanol + oxygen = carbon dioxide + water. (jiskha.com)
  • How many grams of carbon dioxide and water are produced when 130.6 grams of 1-butanol is completely burned? (jiskha.com)
  • ENVIRONMENTAL LEVELS AND HUMAN EXPOSURE A5.1 Environmental levels A5.1.1 Air A5.1.2 Water A5.1.2.1 Surface water A5.1.2.2 Drinking-water A5.1.2.3 Effluents A5.1.2.4 Leachates A5.2 Sediment A5.3 Biota and food A5.3.1 Biota A5.3.2 Food A6. (inchem.org)
  • The apparent partition coefficient in 1-octanol/water (pH 7.4) buffer solution is 238. (nih.gov)
  • The octanol:water partition coefficient of LAAM is 405:1 at physiologic pH. (globalrph.com)
  • 1-Octanol, also known as octan-1-ol, is the organic compound with the molecular formula CH3(CH2)7OH. (wikipedia.org)
  • 1-Octanol also known as Octan-1-ol is the organic compound with the molecular formula CH 3 (CH 2 ) 7 OH. (alchetron.com)
  • 2-Octanol Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health Bhattacharjee, A. (wikipedia.org)
  • 8-Bromo-1-octanol (CAS 50816-19-8) Market Research Report 2018 contents were prepared and placed on the website in February, 2018. (marketpublishers.com)
  • Please note that 8-Bromo-1-octanol (CAS 50816-19-8) Market Research Report 2018 is a half ready publication and contents are subject to change. (marketpublishers.com)
  • The information on this page is current as of April 1 2018 . (fda.gov)
  • 1-Octanol is manufactured for the synthesis of esters for use in perfumes and flavorings. (wikipedia.org)
  • Esters of octanol, such as octyl acetate, occur as components of essential oils. (wikipedia.org)
  • 209) 1.Phosphoric acid esters - toxicity 2.Phosphoric acid esters - adverse effects 3.Flame retardants - toxicity 4.Flame retardants - adverse effects 5.Environmental exposure I.International Programme on Chemical Safety II.Series ISBN 92 4 157209 4 (NLM Classification: QD 181.P1) ISSN 0250-863X The World Health Organization welcomes requests for permission to reproduce or translate its publications, in part or in full. (inchem.org)
  • EVALUATION 1.1 Introduction The Committee evaluated a group of 32 flavouring agents that includes selected esters of aliphatic acyclic primary alcohols with branched-chain aliphatic acyclic acids using the Procedure for the Safety Evaluation of Flavouring Agents (the "Procedure") (see Figure 1 and Table 1). (inchem.org)
  • The mole fraction solubility was taken from Boyer's thesis 1 . (nist.gov)
  • In enzymology, an octanol dehydrogenase (EC 1.1.1.73) is an enzyme that catalyzes the chemical reaction 1-octanol + NAD+ ⇌ {\displaystyle \rightleftharpoons } 1-octanal + NADH + H+ Thus, the two substrates of this enzyme are 1-octanol and NAD+, whereas its 3 products are 1-octanal, NADH, and H+. (wikipedia.org)
  • Photocatalytic degradiation of 1-octanol on anchored titanium oxide and on TiO_2 powder catalysts' J.Catal.158・1. (nii.ac.jp)
  • Furthermore, response to octanol in the absence of food and 5-HT depends on the C. elegans α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid/kainate glutamate receptor homolog gene glr-1 . (pnas.org)
  • butryic acid t-butanol 2-bromo-2-methylbutane 2-amino-2-methyl-butal-1-ol I know it's not t-butanol or 2-bromo-2-methylbutane. (jiskha.com)
  • Is it 2-amino-2-methyl-butal-1-ol? (jiskha.com)
  • 2'-{[4-((2-sulfoethyl)amino)-1,4-dioxobutyl]oxy}taxol sodium salt and 2'-{[4-((3-sulfopropyl)amino-1,4-dioxobutyl]oxy}taxol sodium salt are synthesized by reacting 2'-succinyltaxol with the tetrabutylammonium salts of taurine and 3-aminopropyl sulfonic acid, respectively, and subsequently exchanging the ammonium with sodium. (google.com)
  • The acid is as an intermediate in the metabolism of the amino acid isoleucine (Voet & Voet, 1990) 0207 n-Butyl 2-methylbutyrate No N/R No safety concern USA: 0.02 Europe: 26 0208 Hexyl 2-methylbutanoate No N/R No safety concern USA: 8.6 Europe: 4.9 Table 1. (inchem.org)
  • 1-butanol. (fda.gov)
  • a) 1-butanol b) 2-butanol c) butane d) 1-methylpropanol I "think" that it "should" be "B" (2-butanol)? (jiskha.com)
  • What observed rotation is expected when a 1.44 M solution of (R)-2-butanol is mixed with an equal volume of a 0.720 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sample container that is 1 dm long? (jiskha.com)
  • Predict change in temperature for 1-butanol, CHSCH2CH2CH2OH, if same experiment were using 1-butanol? (jiskha.com)
  • If the heat of combustion of 1-butanol (C4H9OH) is 2,710 kJ/mol, what mass of oxygen is consumed when enough 1-butanol is burned to yield 26,400 kJ of energy? (jiskha.com)
  • 4-methyl-1-pentanol 2-methyl-2-butanol 3-ethyl-1-butanol 2, 2-diethyl-4-pentanol 3-ethyl -2-hexanol IS THERE ANY WRONG NAMES? (jiskha.com)
  • Diethyl ether has a boiling point of 34.5C, and 1-butanol has a boiling point of 117C. (jiskha.com)
  • The answer I found was that: only 1-butanol can form hydrogen bonds. (jiskha.com)
  • These are also called 1-alcohols, an example being 1-butanol or n-butanol. (cosmeticsandtoiletries.com)
  • Add 6 mL of chloroform:octanol and mix gently by inverting the tubes 20 to 25 times to form an emulsion. (cornell.edu)
  • This work has, therefore, studied the penetration through the human nail plate of the model compound chloramphenicol from the lipophilic vehicles medium chain triglycerides and n-octanol and from a lacquer based on quaternary poly(methyl methacrylates) (Eudragit RL). (nih.gov)
  • 1. A taxol compound having the following structure: ##STR9## wherein: X is selected from the group consisting of H, alkyls, and aryls. (google.com)
  • The chemical name for mycophenolate mofetil (MMF) is 2-morpholinoethyl (E)-6-(1,3-dihydro-4-hydroxy-6-methoxy-7-methyl-3 -oxo-5-isobenzofuranyl)-4-methyl-4-hexenoate. (nih.gov)
  • Novozym ® 435 allowed preparation of ( S )-1-chloro-2-octanol and ( S )-1-bromo-2-octanol after 1-3 h of reaction at 40 °C in [BMIM][PF 6 ]. (mdpi.com)
  • Question #1 A student carries out a reaction in which the ion MnO4^- is reduced to MnO2. (brainmass.com)
  • In particular, 2'-[(3-sulfo-1-oxopropyl)oxy]taxol sodium salt is synthesized by reacting taxol with acrylic acid, and subsequently reacting the 2'-acryloyltaxol with bisulfite in a Michael reaction. (google.com)
  • Further optimization of the Ag and Ru metal loading led to two formulations affording a comparable activity to that of an alumina-supported catalyst containing 2.4 times more Co. At optimized conditions, the best formulation (5 wt% Co, 3 atom% Ag) afforded 90% conversion and 78% yield to 1-octylamine in the gas-phase amination reaction of 1-octanol with ammonia at 200 °C using 21 equiv. (rsc.org)
  • 1 - Presuming that these molecules are soluble, tell what ions are 'produced' upon dissolving. (brainmass.com)
  • Octanol is produced industrially by the oligomerization of ethylene using triethylaluminium followed by oxidation of the alkylaluminium products. (wikipedia.org)
  • 1, mostly consists of hydrocarbon-like and high molecular weight species. (earthobservatory.sg)
  • Plant Molecular Biology Reporter 12(1): 6-13. (cornell.edu)
  • Density, Viscosity, and Speed of Sound of (1-Octanol + 2-Methoxyethanol),(1-Octanol + N,N-Dimethylacetamide), and (1-Octanol + Acetophenone) at Temperatures of (298.15, 308.15, and 318.15) K". Journal of Chemical & Engineering Data. (wikipedia.org)
  • Reversible phase transition with the addition/removal of one layer of 1-octanol was found at 265 K by means of X-ray Diffraction (XRD) and Differential Scanning Calorimetry (DSC). (rsc.org)
  • The mole fraction of nitromethane in the (2)-rich phase at 303.15 K (30.00 °C, compiler) was reported to be x 1 = 0.2500, corresponding to 100 w 1 = 13.51 (compiler). (nist.gov)
  • Multilayered intercalation of 1-octanol into the structure of Brodie graphite oxide (B-GO) was studied as a function of temperature and pressure. (rsc.org)
  • Step by step removal of the 1-octanol layers results in changes of distance between graphene oxide planes by ∼4.5 Å. (rsc.org)
  • Experiments with swelling of Brodie GO (BGO) in 1-octanol revealed parallel orientation of the intercalated solvent molecules relative to graphene oxide (GnO) layers. (diva-portal.org)
  • Relevant background information 2.1 Explanation 2.2 Biological data 2.2.1 Absorption, distribution and excretion 2.2.2 Biotransformations 2.2.2.1 Branched-chain aliphatic acids 2.2.2.2 Aliphatic linear alcohols 2.2.3 Toxicological studies 2.2.3.1 Acute toxicity 2.2.3.2 Short-term toxicity studies 2.2.3.3 Long-term toxicity/carcinogenicity studies 2.2.3.4 Genotoxicity studies 2.2.3.5 Reproductive toxicity studies 3. (inchem.org)
  • This transition was interpreted as an incongruent melting of the low temperature/high pressure B-GO intercalated structure with five layers of 1-octanol parallel to GO sheets (L-solvate), resulting in the formation of a four-layered structure that is stable under ambient conditions (A-solvate). (rsc.org)
  • This experiment proved that both L- and A-solvates are structures with layers of 1-octanol parallel to GO planes. (rsc.org)
  • Halohydrin palmitates were prepared by various methods from palmitic acid and 1,2-octanediol. (mdpi.com)
  • The report generally describes 8-bromo-1-octanol, examines its uses, production methods, patents. (marketpublishers.com)
  • Excess volumes of 1-octanol and nitro-methane were measured using a continuous-dilution dilatometer. (nist.gov)
  • Dip the tip of the pipet into octanol and shake off excess. (sentryair.com)
  • For example in vertebrates, presynaptic Ca 2+ stores relying on either the ryanodine receptor (RyR) or the inositol (1,4,5)-trisphosphate receptor (InsP 3 R) have been reported to participate in synaptic transmission, in hippocampal pyramidal neurons, and in basket cell-Purkinje cell synapses. (biologists.org)
  • Laser microsurgery and behavioral experiments reveal that sensory input from different subsets of octanol-sensing neurons is selectively used, depending on stimulus strength, feeding status, and 5-HT levels. (pnas.org)
  • The 302 neurons of the Caenorhabditis elegans nervous system are largely invariant in their location and lineage, and the overall pattern of synaptic connections between classes of neurons is similar in multiple animals ( 1 ). (pnas.org)
  • For instance, during egg laying, vulval muscles are stimulated by 5-HT via egl-30 G q α signaling ( 12 , 13 ), whereas spontaneous activity of egg-laying motor neurons is inhibited by 5-HT via goa-1 G o α signaling in an apparent feedback loop ( 13 ). (pnas.org)
  • We found that 5-HT acts directly on at least one pair of chemosensory neurons and causes changes in sensitivity to octanol via a gpa-11 Gα-dependent pathway. (pnas.org)