ethyl 5-acetyl-3,4-dimethyl-1H-pyrrole-2-carboxylate

1,1-bis(5-(ethoxycarbonyl)-3,4-dimethyl-2-pyrrolyl)ethene

5-acetyloxybenzene-1,3-dicarboxylic acid

methyl 4-[[acetyloxymethyl(methyl)amino]diazenyl]benzoate

[[(4-cyanophenyl)diazenyl]-methylamino]methyl acetate