CAS 1277-43-6 appears in our catalog under these names: Cobaltocene, 98%, BIS(CYCLOPENTADIENYL)COBALT, Cobaltocene, Carbon,60%-67%,RG. Offered by: Thermo Scientific (Acros), Sigma-Aldrich, Fluorochem. Available pack sizes: 1g, 10g, 2G, 100mg, 250mg, 5g.