CAS 563-68-8 appears in our catalog under these names: Thallium(I) acetate, 99.995% (metals basis) , Thallium(I) acetate, Thallous acetate, 99%. Offered by: Thermo Scientific (Alfa Aesar), Biosynth, Thermo Scientific (Acros), Sigma-Aldrich. Available pack sizes: 25g, 100g, 50g, 500g, 5G.