methyl 3-imino-5-[C-nitro-N-(4-nitroanilino)carbonimidoyl]dithiole-4-carboxylate

9-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-2-[(E)-(4-nitroanilino)diazenyl]-3H-purin-6-one

1-(5-nitro-3-phenyl-1H-indol-2-yl)ethanone

[methyl-[(4-nitrophenyl)diazenyl]amino]methyl acetate

1-methoxy-N-methyl-N-[(4-nitrophenyl)diazenyl]methanamine