CAS 51175-71-4 appears in our catalog under these names: 3-Thiophenesulfonyl chloride, 95%, 3-Thiophenesulfonyl chloride, 97% , Thiophene-3-sulfonyl chloride 98%, 3-Thiophenesulfonyl chloride, 97%. Offered by: Combi-blocks, Thermo Scientific, Ambeed, Fluorochem. Available pack sizes: 1g, 25g, 5g, 250MG, 100mg, 2.5g, 10g.