| azo dyes | Dye's in which the azo group is the chromophore and joins benzene or naphthalene rings; they include a large number of biologic stains, such as Congo red and oil red O; also used clinically to promote epithelial growth in the treatment of ulcers, burns, and other wounds; many have anticoagulant action. (05 Mar 2000) |
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| azo- | <chemistry, prefix> A combining form of azote. Applied loosely to compounds having nitrogen variously combined, as in cyanides, nitrates, etc. Now especially applied to compounds containing a two atom nitrogen group uniting two hydrocarbon radicals, as in azobenzene, azobenzoic, etc. These compounds furnish many artificial dyes. See Diazo-. See: Azote. (29 Oct 1998) |
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| azo dye | <chemistry> Dyes that contain the N=N linkage. They are easily prepared from diazo compounds. (18 Nov 1997) |
| azo itch | Itching that occurs among workers in azo dyes. (05 Mar 2000) |
| (7,7-azo-3,12-dihydroxy-5-cholan-24-oyl)-2-aminoethanesulfonic acid | Photolabile bile acid derivative Pharmacological action: affinity labels Chemical name: ethanesulfonic acid, 2-(((3alpha,5beta,12alpha)-7-azi-3,12-dihydroxy-24-oxocholan-24-yl)amino)-, monosodium salt Synonym: 7,7-azo-tc, 7-adtc (26 Jun 1999) |
| acidic dyes | Dye's which ionise in solution to produce negatively charged ions or anions; they consist of sodium salts of phenols and carboxylic acid dyes; their solutions tend to be neutral or slightly alkaline; examples are eosin and aniline blue. (05 Mar 2000) |
| acridine dyes | Derivatives of the compound acridine which is closely related to xanthene; important as fluorochromes in histology, cytochemistry, and chemotherapy; examples include acriflavine, acridine orange, and quinacrine mustard. (05 Mar 2000) |
| azin dyes | Dye derivatives of phenazine, C6H4-N2-C6H4 that include important histologic stains, such as neutral red, azocarmine G., and safranin O. (05 Mar 2000) |
| azocarmine dyes | Dye's giving a dark purplish red colour as histologic stains. (05 Mar 2000) |
| basic dyes | Dye's which ionise in solution to give positively charged ions or cations; the auxochrome group is an amine which can form a salt with an acid like HCl; solutions are usually slightly acidic; examples include basic fuchsin and toluidine blue O. (05 Mar 2000) |
| chlorotriazine dyes | Dyes containing one or more chlorotriazine moieties that react with polysaccharides. (05 Mar 2000) |
| rosanilin dyes | Several triaminotriphenylmethane dye's or mixtures of them often sold under the name of basic fuchsin; rosanilin dye's differ from other triphenylmethane dye's in that the amino groups are unsubstituted, and they may have methyl groups introduced directly onto the benzene rings; the four possible such dyes are pararosanilin, rosanilin, new fuchsin, and magenta II. (05 Mar 2000) |
| rosaniline dyes | Any dye or mixture of dyes made from rosaniline, a red triphenylmethane aniline derivative; used to colour fabrics, paper and as biological stain; also used as disinfectant and topical antifungal agent. (12 Dec 1998) |
| phthalein dyes | Coloured condensation products of phenols with phthalic anhydride; some are used in dye dilution methods to determine kidney or liver function; others are used as pH indicators in chemistry; phenolphthalein is an effective mild cathartic. (12 Dec 1998) |
| hair dyes | Dyes used as cosmetics to change hair colour either permanently or temporarily. (12 Dec 1998) |
| xanthene dyes | Derivatives of the compound xanthene; include the pyronins, rhodamines, and fluoresceins. (05 Mar 2000) |