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 (năf′thôl′, -thōl′, -thŏl′, năp′-) also naph·tol (-tôl, -tōl, -tŏl)
A hydroxy derivative of naphthalene, C10H8O, occurring in two isomeric forms: alpha-naphthol, used in making dyes and perfumes, and beta-naphthol, used in making antioxidants, pigments, dyes, and pharmaceuticals.


(ˈnæfθɒl; ˈnæp-)
(Chemistry) a white crystalline solid having two isomeric forms, alpha-naphthol, used in dyes, and beta-naphthol, used in dyes and as an antioxidant. Formula: C10H7OH
[C19: from naphtha + -ol1]


(ˈnæf θɔl, -θɒl, ˈnæp-)

either of two isomeric hydroxyl derivatives, C10H7OH, of naphthalene: used chiefly in dyes, drugs, perfumes, and insecticides.
[1840–50; napth(a) + -ol1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.naphthol - either of two phenols derived from naphthalene
alpha-naphthol - an isomer of naphthol used in dyes
beta-naphthol - an isomer of naphthol used in rubber as an antioxidant
phenol - any of a class of weakly acidic organic compounds; molecule contains one or more hydroxyl groups
References in periodicals archive ?
Iron(III) acetylacetonate (Fe[(acac).sub.3], 99%), 2,6-diacetylpyridine (97%), 4-methoxy-2-methylaniline (98%), 1-naphthol (1-NaphOH) (99%), and 2-naphthol (2-NaphOH) (99%) were purchased from J&K Chemical Corp.
(2006,2007) [38,39] assessed the metabolites of chlorpyrifos, carbaryl, naphthalene: 3,5,6-trichloro-2-pyridinol (TCPY), 1-naphthol (IN), 2-naphthol (2N) whereas Omoike et al.
In contrast, Mohana et al (23) report that using a microbial consortium applied in the treatment of water contaminated with direct black 22 (solophenyl black), obtained as degradation products 1-naphthol and diphenylamine as a product of anaerobic reduction, similar results obtained by Chavez (24), but using microbial consortia isolated from the Alseseca River of the City of Puebla, Mexico, these products are toxic so it would be convenient to use oxidation mechanisms with laccases or peroxidases and not chemical reduction.
Sahiner, "An approach for prediction of optimum reaction conditions for laccase-catalyzed bio-transformation of 1-naphthol by response surface methodology (RSM)," Bioresource Technology, vol.
Algal oxidation of aromatic hydrocarbons: formation of 1-naphthol from naphthalene by Agmenellum quadruplicatum, strain PR-6.
(2008) showed that 1-naphthol and 2-naphthol may act as thyroid hormone receptor antagonists.
Kuo, "Simultaneous quantitative determination of resorcinol and 1-naphthol in haircolor products by high-performance liquid chromatography," Chromatographia, vol.
Kumar Mishra, "Static and dynamic model for 1-naphthol fluorescence quenching by carbon tetrachloride in dioxane-acetonitrile mixtures," Journal of Photochemistry and Photobiology, A: Chemistry, vol.
P-Nitroanisol (BODI), Fast blue B salt (Urchem) 1-Naphthol (Kermel), L-Glutathione reduced (Wolsen), 1-Naphthyl acetate (SCR), Sodium darbital (ZIBO) 1-Chloro-2,4-dinitrobenzene (ABCR), p-NPP (Amresco), NADPH (Wolsen).