CAS 7778-53-2 appears in our catalog under these names: Potassium phosphate, anhydrous, 97% , Potassium phosphate, ACS, 98.0% min , Potassium phosphate, 97% . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 250g, 1kg, 5kg, 2000g, 100g, 500g.