3-[3-(Ethoxycarbonyl)-5-hydroxy-1H-pyrazol-1-yl]tetrahydrothiophene 1,1-dioxide, 3-Ethoxycarbonyl-5-hydroxy-1-sulphonylpyrazole, Ethyl 1-(1,1-dioxothiolan-3-yl)-5-oxo-2H-pyrazole-3-carboxylate, 3-Ethoxycarbonyl-5-Hydroxy-1-Sulfolanyl-Pyrazole, ethyl 5-hydroxy-1-(tetrahydro-3-thienyl)-1H-pyrazole-3-carboxylate S,S-dioxide, 1H-PYRAZOLE-3-CARBOXYLIC ACID,5-HYDROXY-1-(TETRAHYDRO-1,1-DIOXIDO-3-THIENYL)-,ETHYL ESTER, Einecs 257-577-9