4'-Formyl[1,1'-biphenyl]-3-carboxylic acid4'-formyl(1,1'-biphenyl)-3-carboxylic acid4'-甲酰基联苯-3-羧酸3-(4-Formylphenyl)benzoic acid4′-Formylbiphenyl-3-carboxylic acid4′-Formyl-[1,1′-biphenyl]-3-carboxylic acid4′-甲酰-[1,1′-联苯基]-3-羧酸4'-Formyl-biphenyl-3-carboxylic acid