2 naphthol


[too-naf-thawl, -thol, -nap-] /ˈtuˈnæf θɔl, -θɒl, -ˈnæp-/
noun, chemistry
beta-naphthol.
see under naphthol.
naphthol
[naf-thawl, -thol, nap-] /ˈnæf θɔl, -θɒl, ˈnæp-/
noun, chemistry
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.
also called hydroxynaphthalene.
naphthol
/ˈnæfθɒl; ˈnæp-/
noun
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
word origin
c19: from naphtha + -ol1

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