Synonyms: 1,2-Benzenediamine, N(sup 2)-((4-(diethylamino)phenyl)methylene)-4-nitro-N(sup 1)-phenyl-;4-Nitro-2-(p-diethylaminobenzylidenamino)diphenylamine;N2-((4-(Diethylamino)phenyl)methylene)-4-nitro-N1-phenyl-1,2-benzenediamine;1,2-Benzenediamine, N2-((4-(diethylamino)phenyl)methylene)-4-nitro-N1-phenyl-;N(sup 2)-((4-(diethylamino)phenyl)methylene)-4-nitro-N(sup 1)-phenyl-1,2-benzenediamine;55720-12-2;AC1L44SO;LS-29587;2-[[4-(diethylamino)phenyl]methylideneamino]-4-nitro-N-phenylaniline;N2-{(E)-[4-(diethylamino)phenyl]methylidene}-4-nitro-N1-phenylbenzene-1,2-diamine