| benzal | <chemistry> A transparent crystalline substance, obtained by the action of ammonia upon chloride of benzoyl, as also by several other reactions with benzoyl compounds. Structure: C6H5.CO.NH2 Origin: Benzoic + aldehyde. (06 Aug 1998) |
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| benzalacetophenone | An organic molecule prepared by aldol condensation of acetophenone andbenzaldehyde. (09 Oct 1997) |
| benzalcoumaran-3-one | 1. 2-benzylidene-3(2H)-benzofuranone;the parent compound of a series of plant pigments; they are substituted coumaranones, and may be formed from chalcones. They are often found as glycosides. 2. A class of compounds based on aurone. Synonym: benzalcoumaran-3-one. (05 Mar 2000) |
| benzaldehyde | C6H5CHO;an aldehyde produced artificially or obtained from oil of bitter almond, containing not less than 80% of benzaldehyde; a flavoring agent used in orally administered medicines. Synonym: benzoic aldehyde. (05 Mar 2000) |
| benzaldehyde lyase | <enzyme> Requires thiamine ppi; from pseudomonas fluorescens; cleaves the acycloin linkage of benzoin, producing 2 molecules of benzaldehyde; also acts on anisoin, forming anisaldehyde Registry number: EC 4.1.2.- Synonym: benzoin benzaldehyde lyase (26 Jun 1999) |
| benzalkonium chloride | A mixture of alkylbenzyldimethylammonium chlorides in which the alkyls are long-chain compounds (C8 to C18); a surface-active germicide for many pathogenic nonsporulating bacteria and fungi. Aqueous solutions of this agent have a low surface tension, and possess detergent, keratolytic, and emulsifying properties that aid the penetration and wetting of tissue surfaces. (05 Mar 2000) |
| benzalkonium compounds | <chemical> A mixture of alkylbenzyldimethylammonium compounds. It is a bactericidal quaternary ammonium detergent used topically in medicaments, deodorants, mouthwashes, as a surgical antiseptic, and as a as preservative and emulsifier in drugs and cosmetics. Pharmacological action: anti-infective agents, local, detergents, preservatives, pharmaceutical. (12 Dec 1998) |