CAS: 108-32-7 EC No: 203-572-1 MDL No: MFCD00005385 Liquid Molecular Formula: C₄H₆O₃ MW: 102.09 Melting Point: -55° Boiling Point: 240-243° Flash Point: 132°C (270°F) Density (g/mL): 1.204 Refractive Index: 1.421