CAS 7488-56-4 appears in our catalog under these names: Selenium sulfide/ 94+%, Selenium sulfide, 97% , Selenium sulfide, 94% , Selenium sulfide, 94+%, 94.00%, Selenium sulfide, USP grade, micronised, 95.00%. Offered by: Chemat, Thermo Scientific (Alfa Aesar), Sigma-Aldrich. Available pack sizes: 100g, 5g, 50g, 250g, 25g, 500g.