| meso compounds | Compounds containing more than one asymmetric carbon atom, with configurations about them so balanced that the molecule as a whole possesses a plane of symmetry, although the individual carbon atoms do not; such compounds are not optically active; e.g., ribitol, mucic acid, meso-inositol, meso-cystine. (05 Mar 2000) |
|---|---|
| chlorine compounds | Inorganic compounds that contain chlorine as an integral part of the molecule. (12 Dec 1998) |
| methacholine compounds | A group of compounds that are derivatives of beta-methylacetylcholine (methacholine). (12 Dec 1998) |
| methonium compounds | Compounds containing polymethylene bis-trimethylammonium cations. Members of this group frequently act as ganglionic blockers and neuromuscular depolarising agents. (12 Dec 1998) |
| methylmercury compounds | Organic compounds in which mercury is attached to a methyl group. (12 Dec 1998) |
| methylurea compounds | Urea compounds which are substituted with one or more methyl groups. (12 Dec 1998) |
| chromium compounds | Inorganic compounds that contain chromium as an integral part of the molecule. (12 Dec 1998) |
| chromogenic compounds | Colourless, endogenous or exogenous pigment precursors that may be transformed by biological mechanisms into coloured compounds; used in biochemical assays and in diagnosis as indicators, especially in the form of enzyme substrates. Synonym: chromogens (not to be confused with pigment-synthesizing bacteria also called chromogens). (12 Dec 1998) |
| phenylmercury compounds | <chemical> Organic mercury compounds in which the mercury is attached to a phenyl group. Often used as fungicides and seed treatment agents. Pharmacological action: fungicides, industrial. (12 Dec 1998) |
| ruthenium compounds | Inorganic compounds that contain ruthenium as an integral part of the molecule. (12 Dec 1998) |
| phosphorus compounds | Inorganic compounds that contain phosphorus as an integral part of the molecule. (12 Dec 1998) |
| platinum compounds | Inorganic compounds which contain platinum as the central atom. (12 Dec 1998) |
| mustard compounds | Strong alkylating and immunosuppressive agents whose biological activity is based on the presence of bis(2-chloroethyl)- groups. Although otherwise structurally diverse, the compounds have in common the capacity to contribute alkyl groups to DNA. They are generally highly toxic but include among their number many widely used and effective antineoplastic agent. (12 Dec 1998) |
| polychloroterphenyl compounds | Compounds consisting of three benzene rings linked to each other in either ortho, meta or para positions and substituted with chlorine atoms. (12 Dec 1998) |
| potassium compounds | Inorganic compounds that contain potassium as an integral part of the molecule. (12 Dec 1998) |