CAS: 10025-68-0 EC No: 233-037-8 MDL No: MFCD00011226 UN No: UN2922; Haz Class: 8 (6.1); Packing Group: II Liquid Linear Formula: Se₂Cl₂ MW: 228.83 Melting Point: -85° Boiling Point: 127° (decomposes) Density (g/mL): 2.77