CAS 7785-20-8 appears in our catalog under these names: Nickel ammonium sulfate hexahydrate , Nickel ammonium sulfate hexahydrate, 98% , Ammonium nickel(II) sulfate hexahydrate, Ammonium nickel (II) sulfate hexahydrate. Offered by: Thermo Scientific (Alfa Aesar), Sigma-Aldrich. Available pack sizes: 100g, 500g, 25G.