CAS 16940-92-4 appears in our catalog under these names: Ammonium hexachloroiridate(IV), Premion½, 99.994% (metals b , Ammonium hexachloroiridate(IV), 99% (metals basis), Ir 43% . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 1g, 5g, 0.1g.