CAS 79-40-3 appears in our catalog under these names: Dithio oxamide, Dithiooxamide, 98% , Dithiooxamide, 98.00%, Dithiooxamide, Rubeanic Acid, >98.0%(N). Offered by: GLPBio, Thermo Scientific (Alfa Aesar), Chemat, Biosynth, TCI. Available pack sizes: 25g, 5g, 100g, 50g, 250g, 500g, 1000g, 250mg.