Naphthol /(?)/

Naph·thol

Naphthol

n.
  1. Any one of a series of hydroxyl derivatives of naphthalene, analogous to phenol. In general they are crystalline substances with a phenol (carbolic) odor. (Chem.)

Phrases & Compounds
Naphthol blue
brilliant dyestuffs produced from certain complex nitrogenous derivatives of naphthol or naphthoquinone.