CAS 13709-46-1 appears in our catalog under these names: Praseodymium(III) fluoride, anhydrous, REacton|r, 99.9895% (, Praseodymium(III) fluoride, anhydrous, REacton½, 99.9% (REO . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 10g, 50g, 25g.