ethyl (Z)-2-(2-(4-nitrophenyl)hydrazineylidene)-2-(2-phenylhydrazineyl)acetate

2-{Ethoxycarbonyl-[(4-nitro-phenyl)-hydrazono]-methyl}-isoquinolinium; bromide

N-(5-Acetyl-4-ethoxy-2-oxo-2,5-dihydro-imidazol-1-yl)-N-(4-nitro-phenyl)-acetamide

ethyl 4-hydroxy-1-(p-nitrophenyl)pyrazole-3-carboxylate

ethyl γ-bromo-(4-nitrophenyl)azoacetoacetate