CAS 874838-96-7 appears in our catalog under these names: 4-([5-(Trifluoromethyl)pyridin-2-yl]oxy)benzenesulfonyl chloride, 95%, 4-(5-Trifluoromethyl-2-pyridyloxy)benzenesulfonyl chloride, . Offered by: Combi-blocks, Thermo Scientific (Alfa Aesar). Available pack sizes: 1g, 5g, 250mg.