ethyl 1-methyl-5-nitro-3-phenylindole-2-carboxylate

N-甲基-N-(4-硝基苯基)乙酰胺

N-Methyl-N-(4-nitrophenyl)methanesulfonamide

N-methyl-4-nitro-N-(4-nitrophenyl)benzamide

4-氨基-N-甲基苯胺