CAS 7789-78-8 appears in our catalog under these names: Calcium hydride, 92% min , Calcium hydride, 98% (metals basis excluding Mg), Mg <1% , Calcium hydride, 90-95% , Calcium hydride, coarse powder, ca 92% , Calcium hydride, ca. 93%, extra pure, approx. 1-20 mm grain size. Offered by: Thermo Scientific (Alfa Aesar), Thermo Scientific (Acros), Sigma-Aldrich. Available pack sizes: 100g, 500g, 50g, 250g, 25g, 1000g, 2.5KG, 5G.