CAS: 142-29-0 EC No: 205-532-9 MDL No: MFCD00001394 RTECS: GY5950000 UN No: UN2246; Haz Class: 3; Packing Group: II Liquid Molecular Formula: C₅H₈ MW: 68.12 Melting Point: -135° Boiling Point: 44-46° Flash Point: -34°C (-29°F) …