CAS: 7429-91-6 EC No: 231-073-9 MDL No: MFCD00010982 UN No: UN3178; Haz Class: 4.1; Packing Group: III Solid, packaged under argon Molecular Formula: Dy MW: 162.50 Melting Point: 1412° Boiling Point: 2567° Density (g/mL): 8.559