CAS 16924-03-1 appears in our catalog under these names: Potassium heptafluoroniobate, 95%, Potassium heptafluoroniobate(V), Potassium heptafluoroniobate(V), 99.5% . Offered by: Combi-blocks, GLPBio, Thermo Scientific (Alfa Aesar). Available pack sizes: 10g, 50g, 5g.