4-Carboxydiphenyl ether, 4-Phenoxybenzoic acid, Benzoic acid, 4-phenoxy-, 4-Phenoxy-benzoesaeure, Diphenyl ether 4-carboxylic acid, 4-Carboxybiphenyl ether, phenoxybenzoic acid, Benzoic acid,p-phenoxy, Benzoic acid,4-phenoxy, p-Phenoxybenzoic acid, para-phenoxybenzoic acid, 4-Phenoxy-benzoic acid