CAS 13400-13-0 appears in our catalog under these names: Cesium fluoride, 99.9% (metals basis) , Cesium fluoride, Puratronic½, 99.99% (metals basis) , Cesium fluoride, 99% (metals basis) . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 25g, 100g, 2.5g, 1g, 10g, 50g.