Synonyms: 1H-Pyrrole-3-carboxylic acid, 5-[[1-(2,4-dimethylphenyl)-2,5-dimethyl-1H-pyrrol-3-yl]methylene]-4,5-dihydro-2-methyl-4-oxo-, ethyl ester, (5Z)-;Ethyl (5Z)-5-{[1-(2,4-dimethylphenyl)-2,5-dimethyl-1H-pyrrol-3-yl]methylene}-2-methyl-4-oxo-4,5-dihydro-1H-pyrrole-3-carboxylate