A widely used industrial solvent.
Skin irritant and allergen used in the manufacture of polyurethane foams and other elastomers.
A family of isomeric, colorless aromatic hydrocarbon liquids, that contain the general formula C6H4(CH3)2. They are produced by the destructive distillation of coal or by the catalytic reforming of petroleum naphthenic fractions. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)
Toxic, volatile, flammable liquid hydrocarbon byproduct of coal distillation. It is used as an industrial solvent in paints, varnishes, lacquer thinners, gasoline, etc. Benzene causes central nervous system damage acutely and bone marrow damage chronically and is carcinogenic. It was formerly used as parasiticide.
'Benzene derivatives' are organic compounds that contain a benzene ring as the core structure, with various functional groups attached to it, and can have diverse chemical properties and uses, including as solvents, intermediates in chemical synthesis, and pharmaceuticals.
Salts and esters of hippuric acid.
A species of gram-negative, aerobic bacteria isolated from soil and water as well as clinical specimens. Occasionally it is an opportunistic pathogen.
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)
Oxidases that specifically introduce DIOXYGEN-derived oxygen atoms into a variety of organic molecules.
A highly volatile inhalation anesthetic used mainly in short surgical procedures where light anesthesia with good analgesia is required. It is also used as an industrial solvent. Prolonged exposure to high concentrations of the vapor can lead to cardiotoxicity and neurological impairment.
Organic compounds containing carbon and hydrogen in the form of an unsaturated, usually hexagonal ring structure. The compounds can be single ring, or double, triple, or multiple fused rings.
Enzymes that catalyze the cleavage of a carbon-carbon bond by means other than hydrolysis or oxidation. This subclass contains the DECARBOXYLASES, the ALDEHYDE-LYASES, and the OXO-ACID-LYASES. EC 4.1.
Cresols, also known as hydroxytoluene, are a group of phenolic compounds including ortho-cresol, meta-cresol, and para-cresol, which differ in the position of the hydroxyl group on the benzene ring.
A genus of gram-negative, aerobic, rod-shaped bacteria widely distributed in nature. Some species are pathogenic for humans, animals, and plants.
A species of gram-negative bacteria in the genus PSEUDOMONAS, which is found in SOIL and WATER.
Hydrocarbons are organic compounds consisting entirely of hydrogen and carbon atoms, forming the basis of classes such as alkanes, alkenes, alkynes, and aromatic hydrocarbons, which play a vital role in energy production and chemical synthesis.
Chlorobenzenes are organic compounds consisting of a benzene ring substituted with one or more chlorine atoms, used as solvents, refrigerants, and intermediates in the production of other chemicals, but with limited use due to environmental and health concerns.
Organic salts of cyanic acid containing the -OCN radical.
Air pollutants found in the work area. They are usually produced by the specific nature of the occupation.
A phase transition from liquid state to gas state, which is affected by Raoult's law. It can be accomplished by fractional distillation.
An antiseptic and disinfectant aromatic alcohol.
'Paint' is not a medical term, it's a common noun used to describe a substance composed of pigment and liquid binder, used for decorative or protective coating of various surfaces, with no direct medical relevance or application in the context you've asked.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
A genus in the family BURKHOLDERIACEAE, comprised of many species. They are associated with a variety of infections including MENINGITIS; PERITONITIS; and URINARY TRACT INFECTIONS.
Derivatives and polymers of styrene. They are used in the manufacturing of synthetic rubber, plastics, and resins. Some of the polymers form the skeletal structures for ion exchange resin beads.
The exposure to potentially harmful chemical, physical, or biological agents by inhaling them.
A fungistatic compound that is widely used as a food preservative. It is conjugated to GLYCINE in the liver and excreted as hippuric acid.
A large group of facultatively anaerobic, rod-shaped bacteria that show up as pink (negative) when treated by the gram-staining method.
Organic compounds that contain the -NCO radical.

Methodological issues in biomonitoring of low level exposure to benzene. (1/1074)

Data from a pilot study on unmetabolized benzene and trans,trans muconic acid (t,t-MA) excretion in filling station attendants and unexposed controls were used to afford methodological issues in the biomonitoring of low benzene exposures (around 0.1 ppm). Urinary concentrations of benzene and t,t-MA were measured by dynamic head-space capillary GC/FID and HPLC, respectively. The accuracy of the HPLC determination of t,t-MA was assessed in terms of inter- and intra-method reliability. The adequacy of urinary t,t-MA and benzene as biological markers of low benzene exposure was evaluated by analysing the relationship between personal exposure to benzene and biomarker excretion. Filling station attendants excreted significantly higher amounts of benzene, but not of t,t-MA, than controls. Adjusting for occupational benzene exposure, smokers excreted significantly higher amounts of t,t-MA, but not of unmetabolized benzene, than nonsmokers. A comparative analysis of the present and previously published biomonitoring surveys showed a good inter-study agreement regarding the amount of t,t-MA and unmetabolized benzene excreted (about 0.1-0.2 mg/l and 1-2 micrograms/l, respectively) per unit of exposure (0.1 ppm). For each biomarker, based on the distribution of parameters observed in the pilot study, we calculated the minimum sample size required to estimate the population mean with given confidence and precision.  (+info)

The alkene monooxygenase from Xanthobacter strain Py2 is closely related to aromatic monooxygenases and catalyzes aromatic monohydroxylation of benzene, toluene, and phenol. (2/1074)

The genes encoding the six polypeptide components of the alkene monooxygenase from Xanthobacter strain Py2 (Xamo) have been located on a 4.9-kb fragment of chromosomal DNA previously cloned in cosmid pNY2. Sequencing and analysis of the predicted amino acid sequences indicate that the components of Xamo are homologous to those of the aromatic monooxygenases, toluene 2-, 3-, and 4-monooxygenase and benzene monooxygenase, and that the gene order is identical. The genes and predicted polypeptides are aamA, encoding the 497-residue oxygenase alpha-subunit (XamoA); aamB, encoding the 88-residue oxygenase gamma-subunit (XamoB); aamC, encoding the 122-residue ferredoxin (XamoC); aamD, encoding the 101-residue coupling or effector protein (XamoD); aamE, encoding the 341-residue oxygenase beta-subunit (XamoE); and aamF, encoding the 327-residue reductase (XamoF). A sequence with >60% concurrence with the consensus sequence of sigma54 (RpoN)-dependent promoters was identified upstream of the aamA gene. Detailed comparison of XamoA with the oxygenase alpha-subunits from aromatic monooxygenases, phenol hydroxylases, methane monooxygenase, and the alkene monooxygenase from Rhodococcus rhodochrous B276 showed that, despite the overall similarity to the aromatic monooxygenases, XamoA has some distinctive characteristics of the oxygenases which oxidize aliphatic, and particularly alkene, substrates. On the basis of the similarity between Xamo and the aromatic monooxygenases, Xanthobacter strain Py2 was tested and shown to oxidize benzene, toluene, and phenol, while the alkene monooxygenase-negative mutants NZ1 and NZ2 did not. Benzene was oxidized to phenol, which accumulated transiently before being further oxidized. Toluene was oxidized to a mixture of o-, m-, and p-cresols (39.8, 18, and 41.7%, respectively) and a small amount (0.5%) of benzyl alcohol, none of which were further oxidized. In growth studies Xanthobacter strain Py2 was found to grow on phenol and catechol but not on benzene or toluene; growth on phenol required a functional alkene monooxygenase. However, there is no evidence of genes encoding steps in the metabolism of catechol in the vicinity of the aam gene cluster. This suggests that the inducer specificity of the alkene monooxygenase may have evolved to benefit from the naturally broad substrate specificity of this class of monooxygenase and the ability of the host strain to grow on catechol.  (+info)

Evaluation of mycobacillin and versicolin as agricultural fungicides. II. Stability in soil. (3/1074)

The effect of paddy soils on mycobacillin and versicolin was investigated. Soil inactivated mycobacillin as determined by spectral analysis and microbiological assay. Soil can inactive mycobacillin only at or above the threshold concentration (125 approximately 130 mug per 10 mg of soil), the excess being unreacted. No new peak appears in the ultraviolet spectrum (240 approximately 300 nm) while mycobacillin is inactivated. Soil is without any effect on versicolin.  (+info)

Adenosylcobalamin-mediated methyl transfer by toluate cis-dihydrodiol dehydrogenase of the TOL plasmid pWW0. (4/1074)

We identified and characterized a methyl transfer activity of the toluate cis-dihydrodiol (4-methyl-3,5-cyclohexadiene-cis-1, 2-diol-1-carboxylic acid) dehydrogenase of the TOL plasmid pWW0 towards toluene cis-dihydrodiol (3-methyl-4,5-cyclohexadiene-cis-1, 2-diol). When the purified enzyme from the recombinant Escherichia coli containing the xylL gene was incubated with toluene cis-dihydrodiol in the presence of NAD+, the end products differed depending on the presence of adenosylcobalamin (coenzyme B12). The enzyme yielded catechol in the presence of adenosylcobalamin, while it gave 3-methylcatechol in the absence of the cofactor. Adenosylcobalamin was transformed to methylcobalamin as a result of the enzyme reaction, which indicates that the methyl group of the substrate was transferred to adenosylcobalamin. Other derivatives of the cobalamin such as aquo (hydroxy)- and cyanocobalamin did not mediate the methyl transfer reaction. The dehydrogenation and methyl transfer reactions were assumed to occur concomitantly, and the methyl transfer reaction seemed to depend on the dehydrogenation. To our knowledge, the enzyme is the first dehydrogenase that shows a methyl transfer activity as well.  (+info)

Molecular analysis of microbial community structures in pristine and contaminated aquifers: field and laboratory microcosm experiments. (5/1074)

This study used phylogenetic probes in hybridization analysis to (i) determine in situ microbial community structures in regions of a shallow sand aquifer that were oxygen depleted and fuel contaminated (FC) or aerobic and noncontaminated (NC) and (ii) examine alterations in microbial community structures resulting from exposure to toluene and/or electron acceptor supplementation (nitrate). The latter objective was addressed by using the NC and FC aquifer materials for anaerobic microcosm studies in which phylogenetic probe analysis was complemented by microbial activity assays. Domain probe analysis of the aquifer samples showed that the communities were predominantly Bacteria; Eucarya and Archaea were not detectable. At the phylum and subclass levels, the FC and NC aquifer material had similar relative abundance distributions of 43 to 65% beta- and gamma-Proteobacteria (B+G), 31 to 35% alpha-Proteobacteria (ALF), 15 to 18% sulfate-reducing bacteria, and 5 to 10% high G+C gram positive bacteria. Compared to that of the NC region, the community structure of the FC material differed mainly in an increased abundance of B+G relative to that of ALF. The microcosm communities were like those of the field samples in that they were predominantly Bacteria (83 to 101%) and lacked detectable Archaea but differed in that a small fraction (2 to 8%) of Eucarya was detected regardless of the treatment applied. The latter result was hypothesized to reflect enrichment of anaerobic protozoa. Addition of nitrate and/or toluene stimulated microbial activity in the microcosms, but only supplementation of toluene alone significantly altered community structures. For the NC material, the dominant subclass shifted from B+G to ALF, while in the FC microcosms 55 to 65% of the Bacteria community was no longer identifiable by the phylum or subclass probes used. The latter result suggested that toluene exposure fostered the proliferation of phylotype(s) that were otherwise minor constituents of the FC aquifer community. These studies demonstrated that alterations in aquifer microbial communities resulting from specific anthropogenic perturbances can be inferred from microcosm studies integrating chemical and phylogenetic probe analysis and in the case of hydrocarbon contamination may facilitate the identification of organisms important for in situ biodegradation processes. Further work integrating and coordinating microcosm and field experiments is needed to explore how differences in scale, substrate complexity, and other hydrogeological conditions may affect patterns observed in these systems.  (+info)

Tremor induced by toluene misuse successfully treated by a Vim thalamotomy. (6/1074)

A 22 year old man developed a vigorous tremor of 5 Hz in his right hand, after a 7 year history of toluene misuse. T2 Weighted MRI depicted marked decreases in the signal intensity of the basal ganglia, red nucleus, and thalamus on both sides. The stereotactic coagulation of the left nucleus ventrointermedius (Vim) of the thalamus abolished the tremors in his right hand. This patient clearly exhibited the pathological involvement of rubral lesions in generation of a toluene induced tremor on MRI. Toluene induced tremor is an irreversible symptom which persists even after stopping toluene misuse, therefore in medically intractable cases, it should be positively treated by a Vim thalamotomy.  (+info)

The IIANtr (PtsN) protein of Pseudomonas putida mediates the C source inhibition of the sigma54-dependent Pu promoter of the TOL plasmid. (7/1074)

The gene cluster adjacent to the sequence of rpoN (encoding sigma factor sigma54) of Pseudomonas putida has been studied with respect to the C source regulation of the Pu promoter of the upper TOL (toluene catabolism) operon. The region includes four open reading frames (ORFs), two of which (named ptsN and ptsO genes) encode proteins similar to components of the phosphoenolpyruvate:sugar phosphotransferase system. Each of the four genes was disrupted with a nonpolar insertion, and the effects in the inhibition caused by glucose on Pu activity were inspected with a lacZ reporter system. Although cells lacking ORF102, ORF284, and ptsO did not display any evident phenotype under the conditions tested, the loss of ptsN, which encodes the IIANtr protein, made Pu unresponsive to repression by glucose. The ptsN mutant had rates of glucose/gluconate consumption identical to those of the wild type, thus ruling out indirect effects mediated by the transport of the carbohydrate. A site-directed ptsN mutant in which the conserved phospho-acceptor site His68 of IIANtr was replaced by an aspartic acid residue made Pu blind to the presence or absence of glucose, thus supporting the notion that phosphorylation of IIANtr mediates the C source inhibition of the promoter. These data substantiate the existence of a molecular pathway for co-regulation of some sigma54 promoters in which IIANtr is a key protein intermediate.  (+info)

Effect of organic solvents on the yield of solvent-tolerant Pseudomonas putida S12. (8/1074)

Solvent-tolerant microorganisms are useful in biotransformations with whole cells in two-phase solvent-water systems. The results presented here describe the effects that organic solvents have on the growth of these organisms. The maximal growth rate of Pseudomonas putida S12, 0.8 h-1, was not affected by toluene in batch cultures, but in chemostat cultures the solvent decreased the maximal growth rate by nearly 50%. Toluene, ethylbenzene, propylbenzene, xylene, hexane, and cyclohexane reduced the biomass yield, and this effect depended on the concentration of the solvent in the bacterial membrane and not on its chemical structure. The dose response to solvents in terms of yield was linear up to an approximately 200 mM concentration of solvent in the bacterial membrane, both in the wild type and in a mutant lacking an active efflux system for toluene. Above this critical concentration the yield of the wild type remained constant at 0.2 g of protein/g of glucose with increasing concentrations of toluene. The reduction of the yield in the presence of solvents is due to a maintenance higher by a factor of three or four as well as to a decrease of the maximum growth yield by 33%. Therefore, energy-consuming adaptation processes as well as the uncoupling effect of the solvents reduce the yield of the tolerant cells.  (+info)

Toluene is not a medical condition or disease, but it is a chemical compound that is widely used in various industrial and commercial applications. Medically, toluene can be relevant as a substance of abuse due to its intoxicating effects when inhaled or sniffed. It is a colorless liquid with a distinctive sweet aroma, and it is a common solvent found in many products such as paint thinners, adhesives, and rubber cement.

In the context of medical toxicology, toluene exposure can lead to various health issues, including neurological damage, cognitive impairment, memory loss, nausea, vomiting, and hearing and vision problems. Chronic exposure to toluene can also cause significant harm to the developing fetus during pregnancy, leading to developmental delays, behavioral problems, and physical abnormalities.

Toluene 2,4-Diisocyanate (TDI) is not a medical term itself, but it is an important chemical in the industrial field, particularly in the production of polyurethane products. Therefore, I will provide a general definition of this compound.

Toluene 2,4-Diisocyanate (TDI) is an organic chemical compound with the formula (CH3C6H3NCO)2. It is a colorless to light yellow liquid with a pungent odor and is highly reactive due to the presence of two isocyanate functional groups (-N=C=O). TDI is primarily used in the manufacture of polyurethane foams, coatings, and adhesives. Exposure to TDI can cause irritation to the eyes, skin, and respiratory tract and may pose potential health hazards if not handled properly.

Xylenes are aromatic hydrocarbons that are often used as solvents in the industrial field. They are composed of two benzene rings with methyl side groups (-CH3) and can be found as a mixture of isomers: ortho-xylene, meta-xylene, and para-xylene.

In a medical context, xylenes may be relevant due to their potential for exposure in occupational settings or through environmental contamination. Short-term exposure to high levels of xylenes can cause irritation of the eyes, nose, throat, and lungs, as well as symptoms such as headache, dizziness, and nausea. Long-term exposure has been linked to neurological effects, including memory impairment, hearing loss, and changes in behavior and mood.

It is worth noting that xylenes are not typically considered a direct medical diagnosis, but rather a potential exposure hazard or environmental contaminant that may have health impacts.

Benzene is a colorless, flammable liquid with a sweet odor. It has the molecular formula C6H6 and is composed of six carbon atoms arranged in a ring, bonded to six hydrogen atoms. Benzene is an important industrial solvent and is used as a starting material in the production of various chemicals, including plastics, rubber, resins, and dyes. It is also a natural component of crude oil and gasoline.

In terms of medical relevance, benzene is classified as a human carcinogen by the International Agency for Research on Cancer (IARC) and the Environmental Protection Agency (EPA). Long-term exposure to high levels of benzene can cause various health effects, including anemia, leukemia, and other blood disorders. Occupational exposure to benzene is regulated by the Occupational Safety and Health Administration (OSHA) to protect workers from potential health hazards.

It's important to note that while benzene has legitimate uses in industry, it should be handled with care due to its known health risks. Exposure to benzene can occur through inhalation, skin contact, or accidental ingestion, so appropriate safety measures must be taken when handling this chemical.

Benzene derivatives are chemical compounds that are derived from benzene, which is a simple aromatic hydrocarbon with the molecular formula C6H6. Benzene has a planar, hexagonal ring structure, and its derivatives are formed by replacing one or more of the hydrogen atoms in the benzene molecule with other functional groups.

Benzene derivatives have a wide range of applications in various industries, including pharmaceuticals, dyes, plastics, and explosives. Some common examples of benzene derivatives include toluene, xylene, phenol, aniline, and nitrobenzene. These compounds can have different physical and chemical properties depending on the nature and position of the substituents attached to the benzene ring.

It is important to note that some benzene derivatives are known to be toxic or carcinogenic, and their production, use, and disposal must be carefully regulated to ensure safety and protect public health.

I apologize for any confusion, but "Hippurates" is not a medical term or condition. It might refer to Hippocrates, who is often referred to as the "Father of Medicine." However, if you have a different context in mind, please provide it so I can give a more accurate response.

"Pseudomonas putida" is a species of gram-negative, rod-shaped bacteria that is commonly found in soil and water environments. It is a non-pathogenic, opportunistic microorganism that is known for its versatile metabolism and ability to degrade various organic compounds. This bacterium has been widely studied for its potential applications in bioremediation and industrial biotechnology due to its ability to break down pollutants such as toluene, xylene, and other aromatic hydrocarbons. It is also known for its resistance to heavy metals and antibiotics, making it a valuable tool in the study of bacterial survival mechanisms and potential applications in bioremediation and waste treatment.

Solvents, in a medical context, are substances that are capable of dissolving or dispersing other materials, often used in the preparation of medications and solutions. They are commonly organic chemicals that can liquefy various substances, making it possible to administer them in different forms, such as oral solutions, topical creams, or injectable drugs.

However, it is essential to recognize that solvents may pose health risks if mishandled or misused, particularly when they contain volatile organic compounds (VOCs). Prolonged exposure to these VOCs can lead to adverse health effects, including respiratory issues, neurological damage, and even cancer. Therefore, it is crucial to handle solvents with care and follow safety guidelines to minimize potential health hazards.

Oxygenases are a class of enzymes that catalyze the incorporation of molecular oxygen (O2) into their substrates. They play crucial roles in various biological processes, including the biosynthesis of many natural products, as well as the detoxification and degradation of xenobiotics (foreign substances).

There are two main types of oxygenases: monooxygenases and dioxygenases. Monooxygenases introduce one atom of molecular oxygen into a substrate while reducing the other to water. An example of this type of enzyme is cytochrome P450, which is involved in drug metabolism and steroid hormone synthesis. Dioxygenases, on the other hand, incorporate both atoms of molecular oxygen into their substrates, often leading to the formation of new carbon-carbon bonds or the cleavage of existing ones.

It's important to note that while oxygenases are essential for many life-sustaining processes, they can also contribute to the production of harmful reactive oxygen species (ROS) during normal cellular metabolism. An imbalance in ROS levels can lead to oxidative stress and damage to cells and tissues, which has been linked to various diseases such as cancer, neurodegeneration, and cardiovascular disease.

Trichloroethylene (TCE) is a volatile, colorless liquid with a chloroform-like odor. In the medical field, it is primarily used as a surgical anesthetic and an analgesic. However, its use in medicine has significantly decreased due to the availability of safer alternatives.

In a broader context, TCE is widely used in various industries as a solvent for cleaning metal parts, degreasing fabrics and other materials, and as a refrigerant. It's also present in some consumer products like paint removers, adhesives, and typewriter correction fluids.

Prolonged or repeated exposure to TCE can lead to various health issues, including neurological problems, liver and kidney damage, and an increased risk of certain cancers. Therefore, its use is regulated by environmental and occupational safety agencies worldwide.

Aromatic hydrocarbons, also known as aromatic compounds or arenes, are a class of organic compounds characterized by a planar ring structure with delocalized electrons that give them unique chemical properties. The term "aromatic" was originally used to describe their distinctive odors, but it now refers to their characteristic molecular structure and stability.

Aromatic hydrocarbons contain one or more benzene rings, which are cyclic structures consisting of six carbon atoms arranged in a planar hexagonal shape. Each carbon atom in the benzene ring is bonded to two other carbon atoms and one hydrogen atom, forming alternating double and single bonds between the carbon atoms. However, the delocalized electrons in the benzene ring are evenly distributed around the ring, leading to a unique electronic structure that imparts stability and distinctive chemical properties to aromatic hydrocarbons.

Examples of aromatic hydrocarbons include benzene, toluene, xylene, and naphthalene. These compounds have important uses in industry, but they can also pose health risks if not handled properly. Exposure to high levels of aromatic hydrocarbons has been linked to various health effects, including cancer, neurological damage, and respiratory problems.

Carbon-carbon lyases are a class of enzymes that catalyze the breaking of carbon-carbon bonds in a substrate, resulting in the formation of two molecules with a double bond between them. This reaction is typically accompanied by the release or addition of a cofactor such as water or a coenzyme.

These enzymes play important roles in various metabolic pathways, including the breakdown of carbohydrates, lipids, and amino acids. They are also involved in the biosynthesis of secondary metabolites, such as terpenoids and alkaloids.

Carbon-carbon lyases are classified under EC number 4.1.2. in the Enzyme Commission (EC) system. This classification includes a wide range of enzymes with different substrate specificities and reaction mechanisms. Examples of carbon-carbon lyases include decarboxylases, aldolases, and dehydratases.

It's worth noting that the term "lyase" refers to any enzyme that catalyzes the removal of a group of atoms from a molecule, leaving a double bond or a cycle, and it does not necessarily imply the formation of carbon-carbon bonds.

Cresols are a group of chemical compounds that are phenolic derivatives of benzene, consisting of methyl substituted cresidines. They have the formula C6H4(OH)(\_3CH3). There are three isomers of cresol, depending on the position of the methyl group: ortho-cresol (m-cresol), meta-cresol (p-cresol), and para-cresol (o-cresol). Cresols are used as disinfectants, antiseptics, and preservatives in various industrial and commercial applications. They have a characteristic odor and are soluble in alcohol and ether. In medical terms, cresols may be used as topical antiseptic agents, but they can also cause skin irritation and sensitization.

"Pseudomonas" is a genus of Gram-negative, rod-shaped bacteria that are widely found in soil, water, and plants. Some species of Pseudomonas can cause disease in animals and humans, with P. aeruginosa being the most clinically relevant as it's an opportunistic pathogen capable of causing various types of infections, particularly in individuals with weakened immune systems.

P. aeruginosa is known for its remarkable ability to resist many antibiotics and disinfectants, making infections caused by this bacterium difficult to treat. It can cause a range of healthcare-associated infections, such as pneumonia, bloodstream infections, urinary tract infections, and surgical site infections. In addition, it can also cause external ear infections and eye infections.

Prompt identification and appropriate antimicrobial therapy are crucial for managing Pseudomonas infections, although the increasing antibiotic resistance poses a significant challenge in treatment.

"Pseudomonas mendocina" is a gram-negative, rod-shaped bacterium that belongs to the family Pseudomonadaceae. It is commonly found in soil and water environments. This species is generally considered to be nonpathogenic, meaning it does not typically cause disease in humans. However, there have been rare cases of infection associated with this bacterium, particularly in individuals with weakened immune systems.

The name "mendocina" comes from the location where the bacterium was first isolated, which is Mendocino County in California, USA. Like other Pseudomonas species, it can survive under a wide range of environmental conditions and can metabolize various organic compounds as its energy source.

It's worth noting that while "Pseudomonas mendocina" is not a common human pathogen, identifying the specific bacterial species involved in an infection is important for appropriate treatment. Therefore, laboratory testing and identification of bacteria to the species level can be helpful in guiding medical decision-making.

I'm sorry for any confusion, but "hydrocarbons" is not a term that has a specific medical definition. Hydrocarbons are organic compounds consisting entirely of hydrogen and carbon. They are primarily used in industry as fuel, lubricants, and as raw materials for the production of plastics, fibers, and other chemicals.

However, in a broader scientific context, hydrocarbons can be relevant to medical discussions. For instance, in toxicology, exposure to certain types of hydrocarbons (like those found in gasoline or solvents) can lead to poisoning and related health issues. In environmental medicine, the pollution of air, water, and soil with hydrocarbons is a concern due to potential health effects.

But in general clinical medicine, 'hydrocarbons' wouldn't have a specific definition.

Chlorobenzenes are a group of chemical compounds that consist of a benzene ring (a cyclic structure with six carbon atoms in a hexagonal arrangement) substituted with one or more chlorine atoms. They have the general formula C6H5Clx, where x represents the number of chlorine atoms attached to the benzene ring.

Chlorobenzenes are widely used as industrial solvents, fumigants, and intermediates in the production of other chemicals. Some common examples of chlorobenzenes include monochlorobenzene (C6H5Cl), dichlorobenzenes (C6H4Cl2), trichlorobenzenes (C6H3Cl3), and tetrachlorobenzenes (C6H2Cl4).

Exposure to chlorobenzenes can occur through inhalation, skin contact, or ingestion. They are known to be toxic and can cause a range of health effects, including irritation of the eyes, skin, and respiratory tract, headaches, dizziness, nausea, and vomiting. Long-term exposure has been linked to liver and kidney damage, neurological effects, and an increased risk of cancer.

It is important to handle chlorobenzenes with care and follow appropriate safety precautions to minimize exposure. If you suspect that you have been exposed to chlorobenzenes, seek medical attention immediately.

Cyanates are a class of chemical compounds that contain the functional group -O-C≡N, which consists of a carbon atom triple-bonded to a nitrogen atom and double-bonded to an oxygen atom. In medical terms, cyanates are not commonly used, but potassium cyanate has been studied in the past as a possible treatment for certain conditions such as angina and cyanide poisoning. However, its use is limited due to potential side effects and the availability of safer and more effective treatments. It's important to note that cyanides are highly toxic substances, and exposure to them can be life-threatening.

Occupational air pollutants refer to harmful substances present in the air in workplaces or occupational settings. These pollutants can include dusts, gases, fumes, vapors, or mists that are produced by industrial processes, chemical reactions, or other sources. Examples of occupational air pollutants include:

1. Respirable crystalline silica: A common mineral found in sand, stone, and concrete that can cause lung disease and cancer when inhaled in high concentrations.
2. Asbestos: A naturally occurring mineral fiber that was widely used in construction materials and industrial applications until the 1970s. Exposure to asbestos fibers can cause lung diseases such as asbestosis, lung cancer, and mesothelioma.
3. Welding fumes: Fumes generated during welding processes can contain harmful metals such as manganese, chromium, and nickel that can cause neurological damage and respiratory problems.
4. Isocyanates: Chemicals used in the production of foam insulation, spray-on coatings, and other industrial applications that can cause asthma and other respiratory symptoms.
5. Coal dust: Fine particles generated during coal mining, transportation, and handling that can cause lung disease and other health problems.
6. Diesel exhaust: Emissions from diesel engines that contain harmful particulates and gases that can cause respiratory and cardiovascular problems.

Occupational air pollutants are regulated by various government agencies, including the Occupational Safety and Health Administration (OSHA) in the United States, to protect workers from exposure and minimize health risks.

Volatilization, in the context of pharmacology and medicine, refers to the process by which a substance (usually a medication or drug) transforms into a vapor state at room temperature or upon heating. This change in physical state allows the substance to evaporate and be transferred into the air, potentially leading to inhalation exposure.

In some medical applications, volatilization is used intentionally, such as with essential oils for aromatherapy or topical treatments that utilize a vapor action. However, it can also pose concerns when volatile substances are unintentionally released into the air, potentially leading to indoor air quality issues or exposure risks.

It's important to note that in clinical settings, volatilization is not typically used as a route of administration for medications, as other methods such as oral, intravenous, or inhalation via nebulizers are more common and controlled.

Phenol, also known as carbolic acid, is an organic compound with the molecular formula C6H5OH. It is a white crystalline solid that is slightly soluble in water and has a melting point of 40-42°C. Phenol is a weak acid, but it is quite reactive and can be converted into a variety of other chemicals.

In a medical context, phenol is most commonly used as a disinfectant and antiseptic. It has a characteristic odor that is often described as "tarry" or " medicinal." Phenol is also used in some over-the-counter products, such as mouthwashes and throat lozenges, to help kill bacteria and freshen breath.

However, phenol is also a toxic substance that can cause serious harm if it is swallowed, inhaled, or absorbed through the skin. It can cause irritation and burns to the eyes, skin, and mucous membranes, and it can damage the liver and kidneys if ingested. Long-term exposure to phenol has been linked to an increased risk of cancer.

Because of its potential for harm, phenol is regulated as a hazardous substance in many countries, and it must be handled with care when used in medical or industrial settings.

I'm sorry for any confusion, but "paint" is not a medical term. In a general sense, paint is a substance that is applied as a protective or decorative coating to various surfaces. If you have any medical questions or terms you would like me to clarify, please let me know!

Occupational exposure refers to the contact of an individual with potentially harmful chemical, physical, or biological agents as a result of their job or occupation. This can include exposure to hazardous substances such as chemicals, heavy metals, or dusts; physical agents such as noise, radiation, or ergonomic stressors; and biological agents such as viruses, bacteria, or fungi.

Occupational exposure can occur through various routes, including inhalation, skin contact, ingestion, or injection. Prolonged or repeated exposure to these hazards can increase the risk of developing acute or chronic health conditions, such as respiratory diseases, skin disorders, neurological damage, or cancer.

Employers have a legal and ethical responsibility to minimize occupational exposures through the implementation of appropriate control measures, including engineering controls, administrative controls, personal protective equipment, and training programs. Regular monitoring and surveillance of workers' health can also help identify and prevent potential health hazards in the workplace.

"Ralstonia" is a genus of gram-negative, aerobic bacteria that are commonly found in soil and water. Some species of Ralstonia are known to cause healthcare-associated infections, particularly in patients with compromised immune systems. These infections can include pneumonia, bacteremia, and meningitis. One notable species, Ralstonia solanacearum, is a plant pathogen that causes bacterial wilt in a wide range of plants.

Ralstonia bacteria are known for their ability to form biofilms, which can make them resistant to antibiotics and disinfectants. They can also survive in harsh environments, such as those with low nutrient availability and high salt concentrations. These characteristics make Ralstonia a challenging organism to control in healthcare settings and in the environment.

It's important to note that while Ralstonia bacteria can cause serious infections, they are not typically considered highly virulent or contagious. Instead, infections are often associated with contaminated medical equipment or solutions, such as intravenous fluids, respiratory therapy equipment, and contaminated water sources. Proper infection control practices, including environmental cleaning and disinfection, can help prevent the spread of Ralstonia in healthcare settings.

Styrene is not typically referred to as "Styrenes" in a medical context. Instead, it is simply called Styrene. Here is a medical definition for it:

Styrene is an organic compound with the chemical formula C8H8. It is a colorless oily liquid that evaporates easily and has a sweet smell and taste. Styrene is used in the manufacture of polystyrene plastics and resins, as well as in rubber and latex manufacturing.

In terms of its health effects, styrene is classified as a possible carcinogen by the International Agency for Research on Cancer (IARC). Exposure to high levels of styrene can cause neurological symptoms such as headache, fatigue, and difficulty concentrating. Long-term exposure has been linked to an increased risk of certain types of cancer, including leukemia and lymphoma. However, the evidence for these associations is not conclusive, and more research is needed to fully understand the health effects of styrene exposure.

Inhalation exposure is a term used in occupational and environmental health to describe the situation where an individual breathes in substances present in the air, which could be gases, vapors, fumes, mist, or particulate matter. These substances can originate from various sources, such as industrial processes, chemical reactions, or natural phenomena.

The extent of inhalation exposure is determined by several factors, including:

1. Concentration of the substance in the air
2. Duration of exposure
3. Frequency of exposure
4. The individual's breathing rate
5. The efficiency of the individual's respiratory protection, if any

Inhalation exposure can lead to adverse health effects, depending on the toxicity and concentration of the inhaled substances. Short-term or acute health effects may include irritation of the eyes, nose, throat, or lungs, while long-term or chronic exposure can result in more severe health issues, such as respiratory diseases, neurological disorders, or cancer.

It is essential to monitor and control inhalation exposures in occupational settings to protect workers' health and ensure compliance with regulatory standards. Various methods are employed for exposure assessment, including personal air sampling, area monitoring, and biological monitoring. Based on the results of these assessments, appropriate control measures can be implemented to reduce or eliminate the risks associated with inhalation exposure.

Benzoic acid is an organic compound with the formula C6H5COOH. It is a colorless crystalline solid that is slightly soluble in water and more soluble in organic solvents. Benzoic acid occurs naturally in various plants and serves as an intermediate in the synthesis of other chemical compounds.

In medical terms, benzoic acid and its salts (sodium benzoate, potassium benzoate) are used as preservatives in food, beverages, and cosmetics to prevent bacterial growth. They work by inhibiting the growth of bacteria, particularly gram-positive bacteria, through the disruption of their energy production processes.

Additionally, sodium benzoate is sometimes used as a treatment for hyperammonemia, a condition characterized by high levels of ammonia in the blood. In this case, sodium benzoate acts as a detoxifying agent by binding to excess ammonia and converting it into a more easily excreted compound called hippuric acid.

It is important to note that benzoic acid and its salts can cause allergic reactions or skin irritation in some individuals, particularly those with pre-existing sensitivities or conditions. As with any medication or chemical substance, it should be used under the guidance of a healthcare professional.

'Gram-Negative Facultatively Anaerobic Rods' is a term that refers to a specific group of bacteria. Here's a breakdown of the term:

1. **Gram-Negative**: This refers to the bacterial cell wall's reaction to Gram staining, a common laboratory test used to classify bacteria based on their structural differences. Gram-negative bacteria do not retain the crystal violet stain used in this process, instead taking up the counterstain (usually a pink or red dye like safranin), which makes them appear pink or red under a microscope.

2. **Facultatively Anaerobic**: This indicates that the bacteria can grow and reproduce both in the presence and absence of molecular oxygen (O2). They have the ability to switch their metabolism based on the availability of oxygen, making them versatile in different environments.

3. **Rods**: This term describes the shape of these bacteria. Rod-shaped bacteria are also known as bacilli. Their elongated form is one of several shapes bacteria can take, along with spherical (cocci) and spiral (spirochetes).

In summary, 'Gram-Negative Facultatively Anaerobic Rods' defines a group of rod-shaped bacteria that do not retain crystal violet during Gram staining (Gram-negative), and can grow with or without oxygen (facultatively anaerobic). Examples of such bacteria include Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis.

Isocyanates are a group of highly reactive chemicals that are widely used in the production of flexible and rigid foams, fibers, coatings, and adhesives. The most common isocyanates are toluene diisocyanate (TDI) and methylene diphenyl diisocyanate (MDI). Exposure to isocyanates can cause a range of health effects, including irritation of the eyes, nose, throat, and skin, as well as respiratory symptoms such as coughing, wheezing, and shortness of breath. Long-term exposure has been linked to the development of asthma and other respiratory diseases. Isocyanates are also known to be potential sensitizers, meaning that they can cause an allergic response in some individuals. It is important for workers who handle isocyanates to use appropriate personal protective equipment (PPE) and follow proper safety protocols to minimize exposure.

... is also found in cigarette smoke and car exhaust. If not in contact with air, toluene can remain unchanged in soil or ... Toluene can be used to break open red blood cells in order to extract hemoglobin in biochemistry experiments. Toluene has also ... The extent of toluene substitution has not been determined. In the laboratory, toluene is used as a solvent for carbon ... In addition, toluene disrupts voltage-gated calcium channels and ATP-gated ion channels. Toluene is used as an intoxicative ...
... (TDI) is an organic compound with the formula CH3C6H3(NCO)2. Two of the six possible isomers are ... 2,4-TDI is prepared in three steps from toluene via dinitrotoluene and 2,4-diaminotoluene (TDA). Finally, the TDA is subjected ... ISBN 978-0-471-95812-3. International Chemical Safety Card 0339 IARC Monograph: "Toluene Diisocyanates" NIOSH Pocket Guide to ... 0621". National Institute for Occupational Safety and Health (NIOSH). "Toluene-2,4-diisocyanate". Immediately Dangerous to Life ...
Polyvinyltoluene (PVT, polyvinyl toluene) is a synthetic polymer of alkylbenzenes with a linear formula [CH2CH(C6H4CH3)]n. ... Commercial vinyl toluene is a mixture of methyl styrene isomers chemical formula for PVT PVT can be doped with anthracene or ...
In enzymology, a toluene dioxygenase (EC 1.14.12.11) is an enzyme that catalyzes the chemical reaction toluene + NADH + H+ + O2 ... This enzyme participates in toluene and xylene degradation. Renganathan V (1989). "Possible involvement of toluene-2,3- ... The systematic name of this enzyme class is toluene,NADH:oxygen oxidoreductase (1,2-hydroxylating). This enzyme is also called ... Subramanian V, Liu TN, Yeh WK, Gibson DT (1979). "Toluene dioxygenase: purification of an iron-sulfur protein by affinity ...
... refers to the harmful effects caused by toluene on the body. While a significant amount of toluene, 25%-40%, ... There appears to be some dispute over whether m-cresol is produced as a metabolite of toluene or not. When exposure to toluene ... The smoking and drinking habits of those exposed to toluene will partially determine the elimination of toluene. Studies have ... CYP2E1 seems to be the primary enzyme in the hydroxylation of toluene, accounting for roughly 44% of toluene metabolism; ...
... (DETDA) is a liquid aromatic organic molecule with formula C11H18N2. It is chemically an aromatic ...
This page provides supplementary chemical data on toluene. This box: view edit Except where noted otherwise, data relate to ... Lange's Handbook of Chemistry 10th ed (1967), pp 1522-1524 NIST website Physical and Chemical Properties of Toluene in chemeo. ...
toluene. Bacillus subtilis stained with Nile red as a membrane dye (shown in red). This strain grows partly as cell chains, so ...
Part 1. Reactions in toluene; X-ray crystal structures of [Ir(CO)ClH(PEt3) 2 (AsH2)] and [Ir(CO)XH(PEt 3 ) 2 (µ-ZH 2 )RuCl 2 ( ...
Solvent was Toluene. bCalculated directly from 1H-NMR measurements at 30°C. cCalculated from extrapolation of van't Hoff plot. ...
With toluene the major product is benzylsodium. n-Butylsodium reacts with 1-bromonaphthalene to make 1-sodiumnapthalene and 1- ... Broaddus, C. D. (September 1966). "Metalation of Toluene. The Question of Kinetic vs. Thermodynamic Control". Journal of the ...
"Safety Data Sheet - TOLUENE DIISOCYANATE (TDI)" (PDF). Archived (PDF) from the original on 2018-04-17. Retrieved 2018-11-24. " ... "TOLUENE DIISOCYANATES" (PDF). IARC. 1987. Archived (PDF) from the original on 2018-11-25. Retrieved 2018-11-18. "4,4′- ... Daniels, Robert D. (2018-02-01). "Occupational asthma risk from exposures to toluene diisocyanate: A review and risk assessment ... ISBN 978-0-7176-6703-1. "Toluene-2,4-diisocyanate". CDC. Retrieved 2018-11-24. "Request for assistance in preventing asthma and ...
Annonaceae Carbon monoxide Carbon disulfide Cyanide Ethanol Hexane Mercury Methanol MPTP Rotenone Toluene (inhalant abuse: " ... Toluene and Xylene. In: Olson KR, ed. Poisoning & Drug Overdose. 6th ed. New York: McGraw-Hill; 2012. http://www.accessmedicine ...
2010: Toluene oxidation. 2017: Patheon, a pharmaceutical contract development and manufacturing organization (CDMO) joint ...
Toluene also has the risk of damaging the fetus of a pregnant woman if she were to be exposed to the chemical. Toluene is also ... Toluene's most abundant use is in the production of benzene, another chemical found at the site. Toluene is also one of the ... "Tox Town - Toluene". Tox Town - Toluene. U.S. National Library of Medicine. Retrieved 20 September 2017. U.S. National Library ... Toluene is also flammable in its liquid and gaseous state, which in high amounts can be very dangerous if the area is known for ...
... which were named after a brand of toluene-laden contact cement. Other toluene-containing substances have also been used, most ... Toluene can damage myelin. Toxicity may also result from the pharmacological properties of the drug; excess NMDA antagonism can ... Another very common inhalant is Erase-X, a correction fluid that contains toluene. It has become very common for school and ... Filley CM, Halliday W, Kleinschmidt-DeMasters BK (January 2004). "The effects of toluene on the central nervous system". J. ...
... and the carcinogen toluene. However, in comparison to traditional cigarette smoke, the toxic substance levels identified in e- ...
Triphenylmethane Toluene Robbins, A.; Jeffrey, G. A.; Chesick, J. P.; Donohue, J.; Cotton, F. A.; Frenz, B. A.; Murillo, C. A ...
The addition of catalytic reformer enables a hydroskimming refinery to generate higher octane reformate; benzene, toluene, and ...
The method has been used to prepare compounds that cannot be prepared by traditional synthetic methods, e.g. Ti(η6-toluene)2. ...
A comparative study of the gas- and liquid-phase attack on benzene and toluene". (1979) "Gas-phase reaction of free isopropyl ... A comparative study of the gas- and liquid-phase attack on benzene and toluene". Journal of the Chemical Society, Perkin ... A comparative study of the alkylation of benzene and toluene with C3H7+ ions from the protonation of cyclopropane and propene ... A comparative study of the alkylation of benzene and toluene with C3H7+ ions from the protonation of cyclopropane and propene ...
Toluene Volatile organic compounds[which?] Water Composition of electronic cigarette aerosol List of heated tobacco products ...
A comparative study of the gas- and liquid-phase attack on benzene and toluene". Journal of the Chemical Society, Perkin ... A comparative study of the alkylation of benzene and toluene with C3H7+ ions from the protonation of cyclopropane and propene ... Alkylation of benzene and toluene". Journal of the American Chemical Society, volume 99, issue 16, pages 5477-5478. doi:10.1021 ...
Toluene can be found on cosmetic labels under the names, benzene, toluol, phenylmethane, and methylbenzene. Toluene enters the ... such as toluene. Associations were found between pregnant women who inhaled Formaldehyd, phthalates, and toluene and adverse ... Toluene is found in cosmetic products such as nail polish, nail glue, and hair dyes and is widely used as an industrial solvent ... Toluene is an industrial solvent and is usually in nail polish removers. Formaldehyde can be found in a variety of beauty ...
A 1:1 mixture of toluene and 1,4 dioxane has δD, δP and δH values of 17.8, 1.6 and 5.5, comparable to those of chloroform at ... Because of the health hazards associated with toluene itself, other mixtures of solvents may be found using a full HSP dataset ... Ethanol has a synergistic effect when taken in combination with many solvents; for instance, a combination of toluene/benzene ... Specific uses for organic solvents are in dry cleaning (e.g. tetrachloroethylene); as paint thinners (toluene, turpentine); as ...
Rao, Naren P.; Arun Gupta; K. Sreejayan; Prabhat K. Chand; Vivek Benegal; Pratima Murthy (2009). "Toluene associated ... Tarsh, M.J. (1979). "Schizophreniform Psychosis caused by Sniffing Toluene". Occupational Medicine. 29 (4): 131-133. doi: ... Toluene, found in glue, paint, thinner, etc. . Butane Gasoline (petrol) F17.5 is reserved for tobacco-induced psychosis, but is ...
It may be synthesized from toluene; more interesting is its production when acetone dicarboxylic ester is condensed with the ...
Toluene hydrodealkylation converts toluene to benzene. In this hydrogen-intensive process, toluene is mixed with hydrogen, then ... Toluene disproportionation (TDP) is the conversion of toluene to benzene and xylene. Given that demand for para-xylene (p- ... The solvent-properties of the two are similar, but toluene is less toxic and has a wider liquid range. Toluene is also ... Four chemical processes contribute to industrial benzene production: catalytic reforming, toluene hydrodealkylation, toluene ...
BTX stands for benzene, toluene, xylene. This is a group of common volatile organic compounds (VOCs) that are found in the oil ... toluene, ethylbenzene and xylene among workers at petroleum distribution facilities". Ecotoxicology and Environmental Safety. ... including ethylene and benzene-toluene-xylenes ("BTX") which are often sent to petrochemical plants for further processing in a ...
Toluene can be used as an octane booster in gasoline fuels used in internal combustion engines. Toluene at 86% by volume fueled ... Like other solvents, toluene is also used as an inhalant drug for its intoxicating properties. Toluene and benzene were used as ... Ferrocene Iron pentacarbonyl Toluene Isooctane BTEX - a hydrocarbon mixture of benzene, toluene, xylene and ethyl-benzene, also ... Toluene at 100% can be used as a fuel for both two-stroke and four-stroke engines; however, due to the density of the fuel and ...
Exposure to toluene can cause eye and nose irritation, tiredness, confusion, euphoria, dizziness, headache, dilated pupils, ... Useful search terms for toluene include "methyl benzene," "methyl benzol," "phenyl methane," and "toluol." ... Toluene (C₆H₅CH₃) is a colorless liquid with a sweet, pungent odor. Exposure to toluene can cause eye and nose irritation, ... Agency for Toxic Substances and Disease Registry (ATSDR): ToxFAQs™ for Toluene. *ATSDRs Medical Management Guidelines: Toluene ...
Toluene is also found in cigarette smoke and car exhaust. If not in contact with air, toluene can remain unchanged in soil or ... Toluene can be used to break open red blood cells in order to extract hemoglobin in biochemistry experiments. Toluene has also ... The extent of toluene substitution has not been determined. In the laboratory, toluene is used as a solvent for carbon ... In addition, toluene disrupts voltage-gated calcium channels and ATP-gated ion channels. Toluene is used as an intoxicative ...
Toluene affects the nervous system. Toluene has been found at 959 of the 1,591 National Priority List sites identified by the ... Exposure to toluene occurs from breathing contaminated workplace air, in automobile exhaust, some consumer products paints, ... Can toluene cause cancer?. Studies in workers and animals exposed to toluene generally show that toluene does not cause cancer. ... What is toluene?. Toluene is a clear, colorless liquid with a distinctive smell. It occurs naturally in crude oil and in the ...
... methylbenzene, toluol, phenylmethane) is an aromatic hydrocarbon (C7 H8) commonly used as an industrial solvent for the ... It is identified as CAS#108-88-3, and the United Nations Department of Transportations number for toluene is UN#1294. ... encoded search term (Toluene Toxicity) and Toluene Toxicity What to Read Next on Medscape ... Toluene Toxicity Differential Diagnoses. Updated: Apr 11, 2022 * Author: Nathanael J McKeown, DO; Chief Editor: Sage W Wiener, ...
Toluene and xylene poisoning can occur when someone swallows these substances, breathes in their fumes, ... Toluene and xylene are strong compounds that are used in many household and industrial products. ... Toluene and xylene are strong compounds that are used in many household and industrial products. Toluene and xylene poisoning ... Below are symptoms of toluene and xylene poisoning in different parts of the body. ...
Toluene diisocyanates / published under the joint sponsorship of the United Nations Environment Programme, the International ... published studies in an effort to determine the risks to human health and the environment posed by the two isomers of toluene ...
Toluene is a clear, colorless liquid which becomes a vapor when exposed to air at room temperature. Toluene vapor has a sharp ... If swallowed, toluene can cause liver and kidney damage. More information about the health hazards of toluene is available here ... Provides information on training workers who use materials containing toluene about the health and safety hazards of toluene, ... Gasoline and other fuels also contain toluene. Workers using toluene-containing paints, varnishes, shellac, nail polish, glues ...
Toluene. Find out what is in your tap water ... EWGs Tap Water Database Toluene results for Leon Water Supply ... Toluene. Leon Water Supply. Toluene is a volatile solvent that harms the nervous and immune systems, damages the liver and may ... Toluene is a petroleum-derived chemical found in gasoline and used as a solvent in paints, adhesives and cleaning supplies. ... Toluene is highly neurotoxic. Exposure can cause fatigue and nausea, and may lead to nervous system disorders. ...
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 ...
Testing Status of Toluene 10009-V. Testing Status of Toluene 10009-V. CASRN: 108-88-3. Related: TOLUENE (TECHNICAL), NTP 11617- ... Citation: Chapman DE, Moore TJ, Michener SR, Powis G. Metabolism and covalent binding of [14C]toluene by human and rat liver ... Toxicology and Carcinogenesis Studies of Toluene (CASRN 108-88-3) in F344/N Rats and B6C3F1 Mice (Inhalation Studies) ...
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... We have replaced our o-cresol method for assessing toluene exposure with a new method measuring toluene in ... As toluene is a volatile solvent, please ensure that the sample bottle is filled to the shoulder (but not more) to ensure no ... As toluene itself is measured, please ensure that contamination of the sample is avoided (remove overalls, wash hands before ... We are confident that this new approach is more appropriate for assessing compliance with lower toluene exposures; there is an ...
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 ...
Toluene diisocyanates / published under the joint sponsorship of the United Nations Environment Programme, the International ... published studies in an effort to determine the risks to human health and the environment posed by the two isomers of toluene ...
Toluene : CAS# 108-88-3 Cite CITE. Title : Toluene : CAS# 108-88-3 Corporate Authors(s) : United States. Agency for Toxic ... 2015). Toluene : CAS# 108-88-3. United States. Agency for Toxic Substances and Disease Registry. "Toluene : CAS# 108-88-3" ( ... "Toxicological profile for toluene" (2017). Taylor, Jessilynn et al. "Toxicological profile for toluene" , 2017. Export RIS ... This fact sheet answers the most frequently asked health related questions (FAQs) regarding exposure to toluene. For more ...
Looking to better understand how n-Butyllithium, typ. 20 % solution works? Visit our product finder page and download the technical datasheet to learn more.
NIEHS intramural scientists have defined descriptive terms of particular relevance to their own research, and have ranked those terms accordingly. This search feature obtains best-matches with the terms you choose, and shows an overall score based on the scientific rankings.. View our page to search various areas of interest and methodology.. ...
"Toluene Industry Outlook in Saudi Arabia to 2019" Published. "Toluene Industry Outlook in Saudi Arabia to 2019" Published. From ... Understand the market positioning of the countrys Toluene producers * Learn about opportunities in the Toluene industry * ... Company capacity shares for key Toluene producers Reasons to Get this Report * Obtain up-to-date information on Saudi Arabias ... Toluene Industry Outlook in Japan to 2019 - Market Size, Company Share, Price Trends, Capacity Forecasts of All Active and ...
N-ethyl-4-methylbenzene-1-sulfonamide) , C18H24N2O4S4 , CID 339042 - structure, chemical names, physical and chemical ...
Title : Exposures to toluene diisocyanate (TDI) in polyurethane foam plants. Personal Author(s) : Rakow, A. B.;Baier, E. J.; ...
Toluene diisocyanate (TDI) is a reactive chemical used in manufacturing plastics. TDI exposure adversely affects workers ... Toluene diisocyanate (TDI) regulates haem oxygenase-1/ferritin expression: implications for toluene diisocyanate-induced asthma ... Toluene diisocyanate exposure and autotaxin-lysophosphatidic acid signalling Julia M Broström 1 , Aram Ghalali 2 , Huiyuan ... Toluene diisocyanate exposure and autotaxin-lysophosphatidic acid signalling Julia M Broström et al. Toxicol Appl Pharmacol. ...
Inspite of bearish downstream benzene and Asian toluene values coupled with weaker energy rates, tol... ... Toluene prices trend upward in the US. 20 Nov 2023 17:45 IST ...
Check out the recent price Information and Update of Aromatics Toluene from Europe. ... Toluene is an aromatic hydrocarbon, commonly used as an industrial solvent for the manufacture of paints, chemicals, ... Polymerupdate provides the latest news and South Asia Toluene price rates to assist you to make wise commercial decisions. Our ... The pharmaceutical and print ink industries are the primary consumers of Toluene in South Asia. ...
2-(thiophen-2-yl)ethyl 4-methylbenzene-1-sulfonate. Chemical Structure Depiction of. 2-(thiophen-2-yl)ethyl 4-methylbenzene-1- ... Homepage > Catalog > Building Blocks > 2-(thiophen-2-yl)ethyl 4-methylbenzene-1-sulfonate ...
... Catalog No. 32298 ... Pesticide Standard Mix B, Hexane:Toluene (90:10), 1 mL/ampul. .RCPDP_ProductPrice{padding-bottom:2.5rem}.RCPDP_ProductPrice ... Pesticide Standard Mix B, Hexane:Toluene (90:10), 1 mL/ampul. .product-information_section{margin:0 auto;max-width:1440px! ...
Is anyone else interested in sharing the cost of a GreenScreen assessment of 1-HYDROXY-2-TERT-BUTYL-4-METHYLBENZENE [2409-55-4 ... Hi! Can I get a quote for a GreenScreen Assessment of 1-HYDROXY-2-TERT-BUTYL-4-METHYLBENZENE [2409-55-4]?. ... Profile for "1-HYDROXY-2-TERT-BUTYL-4-METHYLBENZENE" on Pharos: https://pharosproject.net/chemicals/2004923 ...
... and toluene under conditions relevant to handling, storage, and ultimate disposition of… ... 0989: The Potential for Biogenic Formation of Acetone, Methyl Ethyl Ketone, and Toluene in Pulp and Paper Mill Residuals ... 0989: The Potential for Biogenic Formation of Acetone, Methyl Ethyl Ketone, and Toluene in Pulp and Paper Mill Residuals. ... Evidence for biogenic formation of acetone, methyl ethyl ketone (MEK), and toluene under conditions relevant to handling, ...
Lack of mutagenic activity in mice of technical 2 4 di nitro toluene pure 2 4 di nitro toluene 3 5 di nitro toluene 3 5 di ... of technical 2 4 di nitro toluene pure 2 4 di nitro toluene 3 5 di nitro toluene 3 5 di nitro toluene and 2 4 di amino toluene ... Alexiou, A.; Williams, A. 1996: Soot formation in shock-tube pyrolysis of toluene, toluene-methanol, toluene-ethanol, and ... and toluene concentrations on TCE and toluene biodegradation and the population density of TCE and toluene degraders in soil ...

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