1H-Pyrazole-3-carboxylic acid, 4-[5-[3-(ethoxycarbonyl)-5-hydroxy-1-(tetrahydro-3-thienyl)-1H-pyrazol-4-yl]-2,4-pentadienylidene]-4,5-dihydro-5-oxo-1-(tetrahydro-3-thienyl)-, ethyl ester, S,S,S',S'-tetraoxide
CAS No. 84100-58-3