| propionic acid | CH3CH2COOH; methylacetic acid; ethylformic acid;found in sweat. Synonym: propanoic acid. (05 Mar 2000) |
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| propionic | <chemistry> Pertaining to, derived from, or designating, an organic acid which is produced in the distillation of wood, in the fermentation of various organic substances, as glycerin, calcium lactate, etc, and is obtained as a colourless liquid having a sharp, pungent odour. Propionic acid is so called because it is the first or lowest member of the fatty acid series whose salts have a fatty feel. Origin: Proto- + Gr. Piwn fat. Source: Websters Dictionary (01 Mar 1998) |
| propionic acidemia | ketotic hyperglycinaemia |
| propionic acids | 3-carbon saturated monocarboxylic acids. (12 Dec 1998) |
| atropine derivatives | Analogs and derivatives of atropine. (12 Dec 1998) |
| water-soluble chlorophyll derivatives | The copper complex of sodium and/or potassium salts of saponified chlorophyll, used topically for deodorization of chronic lesions and to promote wound repair. (05 Mar 2000) |
| morphine derivatives | Analogs or derivatives of morphine. (12 Dec 1998) |
| scopolamine derivatives | Analogs or derivatives of scopolamine. (12 Dec 1998) |
| indanedione derivatives | Anticoagulants similar to warfarin in action. Anisindione and phenindione are clinically used; diphenadione is very long acting and used as a rodenticide. (05 Mar 2000) |
| ergotamine derivatives | Analogs and derivatives of ergotamine. (12 Dec 1998) |
| Rambourg's chromic acid-phosphotungstic acid stain | <technique> A stain for glycoproteins, used with an electron microscope, with which ultrathin tissue sections reveal complex carbohydrates in the same locations as shown by Rambourg's periodic acid-chromic methenamine-silver stain. (05 Mar 2000) |
| a1-acid glycoprotein | <biology> Plasma protein of mammals and birds, 38% carbohydrate. In humans a single chain glycoprotein of 39 kD. Increased levels are associated with inflammation, pregnancy and various diseases. (18 Nov 1997) |
| abscisic acid | <biochemistry> A lipid hormone that inhibits cell growth in plants, it is associated with fruit drop, leaf death and seed dormancy. It is synthesised in the plastids from carotenoids. This hormone helps plants deal with water loss, and its effects can be reversed with gibberellins. (06 May 1997) |
| abscisic acid 8'-hydroxylase | <enzyme> Catalyses conversion of abscisic acid to 8'-hydroxyabscisic acid, which rearranges to phaseic acid Registry number: EC 1.14.99.- Synonym: aba 8'-hydroxylase (26 Jun 1999) |
| acetic acid | <chemical> The acid most commonly associated with vinegar, it is the most commercially important organic acid and is used to manufacture a wide range of chemical products, such as plastics and Acetobacter but, except for making vinegar, is usually made through synthetic processes. Derivatives of acetic acid which may be formed by substitution reactions. Mono- and di-substituted, as well as, halogenated compounds have been synthesised. Experimentally, alpha- and n2- substituted acetic acids have been examined for their anti-inflammatory activity and effect on the central nervous system respectively. Additionally, limited exposure data has been collected on dibromo and dichloroacetic acids to determine whether they pose health effects. Synonym: ethanoic acid. (26 Jun 1999) |