CAS 1317-38-0 appears in our catalog under these names: Copper(II) oxide, Puratronic½, 99.995% (metals basis) , Copper(II) oxide, ACS, 99.0% min , Copper(II) oxide, 99.7% (metals basis) , Copper(II) oxide, 99.9995% (metals basis) , Copper(II) oxide, nanopowder . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 25g, 100g, 500g, 250g, 1kg, 2kg, 5g, 10g.