CAS 7758-02-3 appears in our catalog under these names: Potassium bromide, Puratronic½, 99.999% (metals basis) , Potassium bromide, 99.92% (metals basis) , Potassium bromide, FTIR Grade , Potassium bromide, Spectroscopy Grade , Potassium bromide, ultra dry, 99.95% (metals basis) . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 10g, 50g, 25g, 100g, 1lb , 0.25lb , 500g, 50pc .