1-naphthol
[ wuhn-naf-thawl, -thol, -nap- ]
/ ˈwʌnˈnæf θɔl, -θɒl, -ˈnæp- /
noun Chemistry.
alpha-naphthol.
See under naphthol.
Words nearby 1-naphthol
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Definition for 1-naphthol (2 of 2)
naphthol
[ naf-thawl, -thol, nap- ]
/ ˈnæf θɔl, -θɒl, ˈnæp- /
noun Chemistry.
either of two isomeric hydroxyl derivatives, C10H7OH, 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.
British Dictionary definitions for 1-naphthol
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: C 10 H 7 OH
Word Origin for naphthol
C19: from
naphtha +
-ol
1
Medical definitions for 1-naphthol
naphthol
[ năf′thôl′, -thōl′, năp′- ]
n.
An organic compound occurring in two isomeric forms, alpha-naphthol and beta-naphthol.
naphthalenol
Scientific definitions for 1-naphthol
naphthol
[ năf′thôl′, -thōl′, năp′- ]
A poisonous organic compound occurring in two isomeric forms. Both isomers are important in the manufacture of dyes, and also in making antiseptics, insecticides, and tanning agents. Naphthol consists of a hydroxyl group (OH) attached to naphthalene. Chemical formula: C10H8O.