1038-66-0 2,2',3,3',5,5',6,6'-Octafluorobenzidine 4,4'-Biphenyldiamine, 2,2',3,3',5,5',6,6'-octafluoro- 4,4'-Diaminoctafluorobiphenyl 4,4'-Diaminooctafluorodiphenyl Benzidine, 2,2',3,3',5,5',6,6'-octafluoro- NSC88339 Octafluorobenzidine [1,1'-Biphenyl]-4,4'-diamine, 2,2',3,3',5,5',6,6'-octafluoro-