1,4-Benzenediamine, N-phenyl-, sulfate (2:1) 101-54-2 4698-29-7 Bis(N-phenylbenzene-p-diamine) sulphate EINECS 225-173-1 N-Phenyl-1,4-benzenediamine sulfate N-Phenyl-p-phenylenediamine sulfate N-Phenyl-p-phenylenediamine, hemisulfate p-Aminodiphenylamine sulfate