CAS 10043-35-3 appears in our catalog under these names: Boric acid, Puratronic|r, 99.9995% (metals basis) , Boric acid, 99+% , Boric acid, ACS, 99.5% min , Boric acid, 99.99% (metals basis) , Boric acid, 99.8% . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 25g, 100g, 500g, 10000g, 2500g, 2kg, 1kg, 5kg.