5-(2-Methyl-5-trifluoromethyl-2H-pyrazol-3-yl)thiophene-2-sulfonylchloride; 5-[1-Methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl]thiophene-2-sulfonylchloride; 5-[1-Methyl-3-(trifluoromethyl)-5-pyrazolyl]-2-thiophenesulfonylchloride
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