CAS 7783-40-6 appears in our catalog under these names: Magnesium fluoride, Optical Grade, 99.9% (metals basis) , Magnesium fluoride hydrate, min 87% MgF2 , Magnesium fluoride, 99% (metals basis excluding Ca & Na), Ca, Magnesium fluoride, 99.9% (metals basis excluding Ca & Na), , Magnesium fluoride, Puratronic½, 99.99% (metals basis) . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 10g, 50g, 2500g, 500g, 250g, 1kg, 25g, 100g.