2-甲基-4,5-二苯唑

2-hydroxy-1,2-bis(4-nitrophenyl)ethanone

4-(p-nitrobenzoyloxy)-3,4-di(p-nitrophenyl)-1,1-diphenyl-2-azabuta-1,3-diene

trans-2,3-Bis-(p-nitrophenyl)oxirane