1,2-Benzenediamine, N(sup 2)-((4-(diethylamino)phenyl)methylene)-4-nitro-N(sup 1)-phenyl- 1,2-Benzenediamine, N2-((4-(diethylamino)phenyl)methylene)-4-nitro-N1-phenyl- 4-Nitro-2-(p-diethylaminobenzylidenamino)diphenylamine 55720-12-2 N(sup 2)-((4-(diethylamino)phenyl)methylene)-4-nitro-N(sup 1)-phenyl-1,2-benzenediamine N2-((4-(Diethylamino)phenyl)methylene)-4-nitro-N1-phenyl-1,2-benzenediamine