苯并[a]吩嗪

1,3-dimethylbenzo[g]pteridine-2,4-dione

2-(1H-benzimidazol-2-yl)-1H-benzimidazole

N,N,N',N'-四甲基-O-亚苯基二胺

2-(4-硝基苯基)-1H-苯并咪唑