4-Biphenylcarboxylic acid 4-Carboxy-1,1'-biphenyl) 4-Carboxybiphenyl 4-Diphenylcarboxylic acid 4-Phenylbenzoic acid 92-92-2 Biphenyl-4-carboxylic acid Diphenyl-4-carboxylic acid NSC23040 Para phenyl benzoic acid [1,1'-Biphenyl]-4-carboxylic acid p-Phenylbenzoic acid