naphtholate

from The Century Dictionary.

• noun A salt-like compound formed by replacing the hydrogen atom of the hydroxyl group of a naphthol with a metal: thus sodium β-naphtholate (C₁₀H₇ONa-β) is formed when β-naphthol is dissolved in caustic soda.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun organic chemistry Any anion derived from naphthol, or any salt containing such an anion