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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 ?
Atom-efficient and environment-friendly multicomponent synthesis of amidoalkyl naphthols catalyzed by P2O5, Tetrahedron Letters, 50: 7220-7222.
They also performed patch test in these workers and found out that Red RC base and naphthols were the commonest allergens.
Of phenolic compounds, eight were determined, including phenols, cresols, xylenols, trimethylphenols and naphthols.
Dermal exposure to jet fuel JP-8 significantly contributes to the production of urinary naphthols in fuel-cell maintenance workers.
The initial rates of the naphthols and p-phenylphenol oxidations were linearly dependent on enzyme concentration.
Dry organic pigments include phthalo blues and greens, naphthols, carbazole violet, red lake C and other shades of red, yellow, and orange.
We are expanding our current lines of phthalocyanines, indanthrones, naphthols, titanantes, copper and cobalt spinels, and anti-corrosive pigments with new chemistries and higher quality with regard to color strength, chroma, resistant properties, and more," says McBride.
Reds (DPP, Naphthols, Anthraquinone, Toluidine, Anthanthrone, Bon Maroon Quinacridone) Yellow and Oranges (Bismuth Vanadale, Diarylide, Monoflag, Benzimidazolone, Hybrids, Isoindolinone, Dianisidine)
Msim]Cl} can catalyzed the synthesis of N-sulfonyl imines[14], and the preparation of 1-amidoalkyl-2- naphthols [15].
We are the only company in the United States manufacturing this wide range of Naphthols.