1,3-dimethyl-5-nitro-1,3-dihydro-2H-benzimidazol-2-one

1,3-二甲基-2-氧代-2,3-二氢-1H-苯并咪唑-5-羧酸

methyl 1,3-dimethyl-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-5-carboxylate

5-硝基-2-苯咪唑酮

1,2-苯二胺