4,4'-Biphenyldicarboxylic acid 4,4'-Biphenyldicarboxylic acid Synonyms: Biphenyl-4,4′-dicarboxylic acid; Biphenyl-4,4'-dicarboxylic acid; 4,4'-Diphenit acid; 4,4'-Biphenyl dicarboxylic acid; 4,4’-Biphenyl dicarboxylic acid CAS NO.: 787-70-2 Formula: C14H10O4 Weight: 242.23