1,4-dihydroxy-2-naphthalic acid, 2-Naphthalenecarboxylic acid,1,4-dihydroxy, 1,4-Dihydroxy-2-naphthalenecarboxylic Acid, 1,4-dihydroxynaphthoic acid, 1,4-dihydoxynaphthalene-2-carboxylic acid, 1,4-Dihydroxy-2-naphthoic Acid, 1,4-dihydroxy-2-naphthoate, 1,4-naphthohydroquinone-2-carboxylic acid, 1,4-Dihydroxy-2-naphthoicAcid, 1,4-dihydroxynaphthalene-2-carboxylic acid