CAS 7440-65-5 appears in our catalog under these names: Yttrium ingot, 99.9% (REO) , Yttrium foil, 0.127mm (0.005in) thick, 99.9% (REO) , Yttrium pieces, 99.9% (REO) , Yttrium foil, 0.64mm (0.025in) thick, 99.5% (REO) , Yttrium rod, 6.35mm (0.25in) dia, 99.9% (metals basis exclud. Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 10g, 50g, 25x25mm, 50x50mm, 25mm, 50mm, 100mm, 10mm.