CAS 7440-23-5 appears in our catalog under these names: Sodium, 99.95% (metals basis) , Sodium, dispersion, 40% in oil , Sodium ingot, 99.8% (metals basis) , Sodium sticks, coated in film of protective hydrocarbon oil,. Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 1g, 5g, 250g, *4x250g, 450g, *5x450g, 125g, 500g.