CAS 7647-18-9 appears in our catalog under these names: Antimony(V) chloride, ultra dry, 99.999% (metals basis) , Antimony(V) chloride, 99% , Antimony(V) chloride, 99.997% (metals basis) . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 1g, 10g, 50g, 250g, 25g, 100g.