Synonyms: 1,4-Benzenediamine,N,N-diphenyl- (9CI);p-Phenylenediamine, N,N-diphenyl- (7CI,8CI);4-(Diphenylamino)aniline;4-(N,N-Diphenylamino)aniline;4-Aminotriphenylamine;N,N-Diphenyl-1,4-phenylenediamine;N,N-Diphenyl-4-aminoaniline;N,N-Diphenyl-p-phenylenediamine;N-(4-Aminophenyl)-N,N-diphenylamine;NSC231610;p-(Diphenylamino)aniline;p-Aminotriphenylamine;N,N-diphenylbenzene-1,4-diamine;