CAS 7440-19-9 appears in our catalog under these names: Samarium Standard: Sm @ 1000 µg/mL in 5% HNO3, Samarium Standard: Sm @ 10000 µg/mL in 5% HNO3, Samarium, Samarium Powder/ 99.9% (REO), Samarium Chips/ 99.9% (REO). Offered by: VHG, TRC, GLPBio, Chemat, Thermo Scientific (Alfa Aesar). Available pack sizes: 100ml, 250ml, 1g, 2,5g, 5g, 100g, 25g, 10g.