CAS: 13477-34-4 EC No: 233-332-1 MDL No: MFCD00149604 RTECS: EW3000000 UN No: UN1454; Haz Class: 5.1; Packing Group: III Crystalline Linear Formula: Ca(NO₃)₂·4H₂O MW: 236.15 Melting Point: 44° (decomposes) Density (g/mL): 1.86