CAS 10026-13-8 appears in our catalog under these names: Phosphorus(V) chloride, 98% , Phosphorus(V) chloride, 99.99% (metals basis) , Phosphorus pentachloride, 98%, PHOSPHORUS PENTACHLORIDE, PHOSPHORUS PENTACHLORIDE, REAGENT GRADE&. Offered by: Thermo Scientific (Alfa Aesar), Thermo Scientific (Acros), Sigma-Aldrich. Available pack sizes: 100g, 25g, 1KG, 2.5KG, 500G, 50G, 250G.