CAS 7439-88-5 appears in our catalog under these names: Iridium powder, -22 mesh, Premion|r, 99.99% (metals basis) , Iridium foil, 0.5mm (0.02in) thick, typically 99.7+% (metals, Iridium powder, -325 mesh, 99.9% (metals basis) , Iridium pellet, approximately 1.3cm (0.5in) dia, 99.8% (meta, Iridium shot, 6-7mm (0.24-0.28in), 99.95% (metals basis) . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 1g, 5g, 25x25mm, 0.5g, 2g, 1pc, 10cm, 5each.