2,2',3,3',5,5',6,6'-octafluoro-biphenyl-4,4'-diamine, Octafluorobenzidine, 4,4'-Diaminooctafluorodiphenyl, 4,4'-DiaMinooctafluorobiphenyl, 4,4'-diamino-2,2',3,3',5,5',6,6'-octafluorobiphenyl, Benzidine,2,2',3,3',5,5',6,6'-octafluoro, 4,4'-diaminooctafluoro biphenyl, 4,4'-Diaminoctafluorobiphenyl, 2,2',3,3',5,5',6,6'-Octafluorobenzidine, [1,1‘-Biphenyl]-4,4‘-diamine, 2,2‘,3,3‘,5,5‘,6,6‘-octafluoro-, octafluoro-4,4'-biphenylenediamine