CAS 15283-45-1 appears in our catalog under these names: Gold(I) sodium thiosulfate hydrate, 99.9% (metals basis) , Gold(I) sodium thiosulfate hydrate, 99.9% (metals basis) , Sanochrysin, 99.9% trace metals basis. Offered by: Thermo Scientific (Alfa Aesar), Chemat. Available pack sizes: 5g, 1g, 25g, 100mg, 500mg.