CAS 7790-75-2 appears in our catalog under these names: Calcium tungstate, 98%, Calcium tungstate/ 99+%, Calcium tungsten oxide, Calcium tungsten oxide, 99.78% (metals basis) , Calcium tungsten oxide, 98% . Offered by: Combi-blocks, Chemat, GLPBio, Thermo Scientific (Alfa Aesar), Sigma-Aldrich. Available pack sizes: 25g, 100g, 1g, 5g, 250g, 10g, 500g, 50g.