CAS 15878-77-0 appears in our catalog under these names: Praseodymium(III) nitrate hexahydrate, REacton|r, 99.99% (RE, Praseodymium(III) nitrate hydrate, 99.9% (REO) , PRASEODYMIUM NITRATE HEXAHYDRATE, 99.99&, PRASEODYMIUM(III) NITRATE HEXAHYDRATE, &. Offered by: Thermo Scientific (Alfa Aesar), Sigma-Aldrich. Available pack sizes: 25g, 100g, 10g, 50g, 250g, 1kg, 5G.