[naf-theen, nap-] /ˈnæf θin, ˈnæp-/
any of a group of hydrocarbon ring compounds of the general formula, C n H 2n , derivatives of cyclopentane and cyclohexane, found in certain petroleums.
any of a class of cycloalkanes, mainly derivatives of cyclopentane, found in petroleum
[naf-thawl, -thol, nap-] /ˈnæf θɔl, -θɒl, ˈnæp-/ noun, Chemistry. 1. either of two isomeric hydroxyl derivatives, C 1 0 H 7 OH, of naphthalene (alpha-naphthol or 1-naphthol and beta-naphthol or 2-naphthol) white or yellowish crystals, with a phenolic odor, that darken on exposure to light: used chiefly in dyes, drugs, perfumes, and insecticides. /ˈnæfθɒl; ˈnæp-/ […]
- Naphthol yellow s
naphthol yellow S n. An acid dye used as a stain for basic proteins in microspectrophotometry.
[naf-thil, nap-] /ˈnæf θɪl, ˈnæp-/ adjective, Chemistry. 1. containing the . /ˈnæfθaɪl; -θɪl; ˈnæp-/ noun 1. (modifier) of, consisting of, or containing either of two forms of the monovalent group C10H7–
noun, Chemistry. 1. Also called alpha-naphthyl group, alpha-naphthyl radical. the univalent group C 1 0 H 7 –, having a replaceable hydrogen atom in the first, or alpha, position; 1-naphthyl group. 2. Also called beta-naphthyl group, beta-naphthyl radical. the univalent group C 1 0 H 7 –, having a replaceable hydrogen atom in the second, […]