Synonyms: Benzoicacid, 4,4'-[2,2,2-trifluoro-1-(trifluoromethyl)ethylidene]di- (7CI);Benzoicacid, 4,4'-[trifluoro-1-(trifluoromethyl)ethylidene]di- (8CI);2,2-Bis(4-carboxyphenyl)hexafluoropropane;2,2-Bis(p-carboxyphenyl)hexafluoropropane;4,4'-(1,1,1,3,3,3-Hexafluoropropane-2,2-diyl)dibenzoic acid;4,4'-(Hexafluoroisopropylidene)bis(benzoic acid);4,4'-(Hexafluoroisopropylidene)dibenzoic acid;4,4'-Hexafluoroisopropylidenediphenyl-1,1'-dicarboxylic acid;Hexafluoro-2,2-bis(4-carboxyphenyl)propane;