5-[(2,3-dimethyl-6-nitrophenyl)methylidene]imidazolidine-2,4-dione

2,3-dimethyl-6-nitrobenzaldehyde

3,4-二甲基-O-苯二胺

3-bromo-1,2-dimethyl-4-nitrobenzene

4-溴-2,3-二甲基-6-硝基苯胺