| D010636 |
Phenols |
Benzene derivatives that include one or more hydroxyl groups attached to the ring structure. |
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| D011422 |
Propionates |
Derivatives of propionic acid. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain the carboxyethane structure. |
Propanoate,Propanoic Acid,Propionate,Propanoates,Propanoic Acid Derivatives,Propanoic Acids,Propionic Acid Derivatives,Propionic Acids,Acid, Propanoic,Acids, Propanoic,Acids, Propionic,Derivatives, Propanoic Acid,Derivatives, Propionic Acid |
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| D002396 |
Catechols |
A group of 1,2-benzenediols that contain the general formula R-C6H5O2. |
Pyrocatechols,o-Dihydroxybenzenes,ortho-Dihydroxybenzenes,o Dihydroxybenzenes,ortho Dihydroxybenzenes |
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| D002849 |
Chromatography, Gas |
Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix. |
Chromatography, Gas-Liquid,Gas Chromatography,Chromatographies, Gas,Chromatographies, Gas-Liquid,Chromatography, Gas Liquid,Gas Chromatographies,Gas-Liquid Chromatographies,Gas-Liquid Chromatography |
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| D004340 |
Drug Contamination |
The presence of organisms, or any foreign material that makes a drug preparation impure. |
Drug Adulteration,Drug Contamination, Chemical,Drug Contamination, Microbial,Drug Contamination, Physical,Drug Impurity,Adulteration, Drug,Chemical Drug Contamination,Chemical Drug Contaminations,Contamination, Chemical Drug,Contamination, Drug,Contamination, Microbial Drug,Contamination, Physical Drug,Contaminations, Chemical Drug,Contaminations, Microbial Drug,Contaminations, Physical Drug,Drug Adulterations,Drug Contaminations,Drug Contaminations, Chemical,Drug Contaminations, Microbial,Drug Contaminations, Physical,Drug Impurities,Impurity, Drug,Microbial Drug Contamination,Microbial Drug Contaminations,Physical Drug Contamination,Physical Drug Contaminations |
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| D004583 |
Electrons |
Stable elementary particles having the smallest known negative charge, present in all elements; also called negatrons. Positively charged electrons are called positrons. The numbers, energies and arrangement of electrons around atomic nuclei determine the chemical identities of elements. Beams of electrons are called CATHODE RAYS. |
Fast Electrons,Negatrons,Positrons,Electron,Electron, Fast,Electrons, Fast,Fast Electron,Negatron,Positron |
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| D005461 |
Fluorine |
A nonmetallic, diatomic gas that is a trace element and member of the halogen family. It is used in dentistry as fluoride (FLUORIDES) to prevent dental caries. |
Fluorine-19,Fluorine 19 |
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| D006018 |
Glycols |
A generic grouping for dihydric alcohols with the hydroxy groups (-OH) located on different carbon atoms. They are viscous liquids with high boiling points for their molecular weights. |
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| D006868 |
Hydrolysis |
The process of cleaving a chemical compound by the addition of a molecule of water. |
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| D000085 |
Acetates |
Derivatives of ACETIC ACID. Included under this heading are a broad variety of acid forms, salts, esters, and amides that contain the carboxymethane structure. |
Acetate,Acetic Acid Esters,Acetic Acids,Acids, Acetic,Esters, Acetic Acid |
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