2,2',3,3',5,5',6,6'-OCTAFLUORO-4,4'-BIBENZENAMINE;4,4'-DIAMINOOCTAFLUOROBIPHENYL;[1,1'-Biphenyl]-4,4'-diamine, 2,2',3,3',5,5',6,6'-octafluoro-;1’-biphenyl]-4,4’-diamine,2,2’,3,3’,5,5’,6,6’-octafluoro-[;2,2',3,3',5,5',6,6'-Octafluoro[1,1'-biphenyl]-4,4'-diamine;2,2',3,3',5,5',6,6'-Octafluorobenzidine;4,4'-Biphenyldiamine, 2,2',3,3',5,5',6,6'-octafluoro-;4,4'-Diaminooctafluorodiphenyl
