CAS 1317-36-8 appears in our catalog under these names: Lead(II) oxide, Puratronic½, 99.9995% (metals basis) , Lead(II) oxide, low silver , Lead(II) oxide, Puratronic½, 99.999% (metals basis) , Lead(II) oxide, 99.9% , Lead(II) oxide, 99.99% (metals basis) . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 25g, 100g, 500g, 2kg, 50g, 250g, 1kg.