CAS 1317-39-1 appears in our catalog under these names: Copper(I) oxide , Copper(I) Oxide, Copper(I) oxide/ 99%, Copper(I) oxide, 99% (metals basis) , Copper(I) oxide, 99.9% (metals basis) . Offered by: Chemat, TRC, Thermo Scientific (Alfa Aesar), TCI, Thermo Scientific (Acros). Available pack sizes: 1kg, 5g, 250g, 100g, 25g, 500g, 2.5kg, 2500g.