CAS: 14040-11-0 EC No: 237-880-2 MDL No: MFCD00011462 RTECS: YO7705000 UN No: UN3466; Haz Class: 6.1; Packing Group: III Crystalline Linear Formula: W(CO)₆ MW: 351.91 Melting Point: 150° Density (g/mL): 2.65