N,N-Diphenyl-4-[4-(N-phenylanilino)phenyl]aniline

tetraphenylbenzidine (tpb) ; tetra-n-phenylbenzidine (tpb) ; tpb ; 4,4'-bis(diphenylamino)biphenyl ; n,n',n'-tetraphenylbenzidine ; n,n,n',n'-tetraphenylbenzidine ; 4,4'-bis(diphenylamino)-1,1'-biphenyl ; tetra-n-phenylbenzidine ; n,n,n',n'-tetraphenyl-4,4'-biphenyldiamine ; tetraphenylbenzidine