119-70-0 4,4'-Diamino-2-sulfodiphenylamine 4,4'-Diaminodiphenylamine-2'-sulfonic acid 4,4'-Diaminodiphenylamine-2-sulfonic acid 4-(p-Aminoanilino)-3-sulfoaniline 5-Amino-2-(p-aminoanilino)benzenesulfonic acid 6-(p-Aminoanilino)metanilic acid Benzenesulfonic acid, 5-amino-2-(p-aminoanilino)- Benzenesulfonic acid, 5-amino-2-[(4-aminophenyl)amino]- Diphenylamine-2-sulfonic acid, 4,4'-diamino- NSC4706