CAS 17786-31-1 appears in our catalog under these names: Tetracobaltdodecacarbonyl, Dodecacarbonyltetracobalt, 98% min , Tetracobalt dodecacarbonyl 98%. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), Ambeed. Available pack sizes: 1g, 25g, 5g, 250mg.