4,4'-Biphenyldiamine, N,N'-dibenzylidene- 4,4'-Bis(benzylidene)benzidine 6311-48-4 Benzidine, N,N'-dibenzylidene- Dibenzalbenzidine N,N'-Bisbenzylidenebenzidine N,N'-Dibenzylidene-4,4'-diaminobiphenyl N,N'-Dibenzylidenebenzidine NSC43214 [1,1'-Biphenyl]-4,4'-diamine, N,N'-bis(phenylmethylene)-