CAS 230295-11-1 appears in our catalog under these names: 5-[1-Methyl-3-(trifluoromethyl)pyrazol-5-yl]thiophene2-sulfonyl chloride, 95%, 5-(1-Methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl)thiophene-2-sulfonyl chloride, 97%, 5-[1-Methyl-3-(trifluoromethyl)pyrazol-5-yl]thiophene-2-sulfonyl chloride. Offered by: Combi-blocks, AmBeed, Fluorochem. Available pack sizes: 1g, 5g, 250mg.