Synonyms: 4-Biphenylcarboxylicacid, 4'-tert-butyl- (7CI,8CI);4'-tert-Butylbiphenyl-4-carboxylic acid;[1,1'-biphenyl]-4-carboxylic acid, 4'-(1,1-dimethylethyl)-;4'-tert-Butyl[1,1'-biphenyl]-4-carboxylic acid;Biphenyl-4-carboxylic acid, 4'-(1,1-dimethylethyl)-;