CAS 7681-82-5 appears in our catalog under these names: Sodium Iodide, 4N, Sodium iodide, ACS, 99.5% min , Sodium iodide, 99+% (dry wt., water <1.5%) , Sodium iodide, ultra dry, 99.98% (metals basis) , Sodium iodide, ultra dry, 99.99% (metals basis) . Offered by: Chemat Brand, Thermo Scientific (Alfa Aesar). Available pack sizes: on request, 100g, 500g, 2500g, 25g, 2kg, 5g.