4-(4-nitroanilino)phenol

3-Nitro-6-hydroxy-carbazole

1,4-Dihydroxy-2,5-bis(2-amino-5-nitrophenyl)benzene

2-[4-[(4-nitrophenyl)diazenyl]anilino]ethanol

1-(3-nitrophenyl)-N-(4-nitrophenyl)methanimine