Synonyms: 4,4'-Biphenyldicarboxylicacid, diethyl ester (6CI,7CI); [1,1'-Biphenyl]-4,4'-dicarboxylic acid, diethylester (9CI); 4,4'-Bis(ethoxycarbonyl)-1,1'-biphenyl;4,4'-Bis(ethoxycarbonyl)biphenyl; Diethyl1,1'-biphenyl-4,4'-dicarboxylate; Diethyl 4,4'-biphenyldicarboxylate; Diethyl p,p'-bibenzoate; NSC 93978