(n) biochemical indicator of the presence of carbohydrates in a solution; if carbohydrates are present a violet ring is formed by reaction with alpha-naphthol in the presence of sulfuric acid, Syn.Molisch's test, Molisch reaction, Molisch test
{ n. Also }. [ Benzoin + naphthol. ] (Chem.) A white crystalline powder used as an intestinal antiseptic; beta-naphthol benzoate. [ Webster 1913 Suppl. ]
n. [ Naphthalene + -ol. ] (Chem.) Any one of a series of hydroxyl derivatives of naphthalene, analogous to phenol. In general they are crystalline substances with a phenol (carbolic) odor. [ 1913 Webster ]
Naphthol blue, Naphthol orange, Naphthol yellow (Chem.), brilliant dyestuffs produced from certain complex nitrogenous derivatives of naphthol or naphthoquinone. [ 1913 Webster ]
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