CAS: 7553-56-2 EC No: 231-442-4 MDL No: MFCD00011355 RTECS: NN1575000 UN No: UN3495; Haz Class: 8 (6.1); Packing Group: III Solid Molecular Formula: I₂ MW: 253.81 Melting Point: 113° Boiling Point: 184° Density (g/mL): 4.94