6-methyl-2-(4-nitrophenyl)-3-phenyl-3H-pyridazine

6-ethyl-2-(4-nitrophenyl)-3-phenyl-3H-pyridazine

4-硝基苯甲酸酐

4-硝基苯基安息香酸

(2-甲氧基苯基)(4-硝基苯基)甲酮