phthalic

Of, relating to, or derived from naphthalene.

Relating to phthalic acid.

Derived from naphthalene.

Pertaining to, or designating, a dibasic acid obtained by the oxidation of naphthalene and allied substances.

a white crystalline substance, C6H4.(CO2H)2, analogous to benzoic acid, and employed in the brilliant dyestuffs called the phthaleins.

of, relating to, or derived from naphthalene or phthalic acid