173908-14-0 1H-Pyrrole-2-carboxylic acid, 1-[(4,5-dichloro-2-nitrophenyl)sulfonyl]-, ethyl ester AIDS-043329 AIDS043329 Ethyl 1-[(2-Nitro-4,5-dichlorophenyl)sulfonyl]-1H-pyrrole-2-carboxylate Pyrrolyl Phenyl Sulfone deriv.