CAS Number: 75-07-0 Formula: C2H4O Formula Weight: 44.05 Linear Formula: CH3CHO MDL No.: MFCD00006991 Density: 0.868 g/mL at 20 C; 0.843 g/mL at 25 C Refractive Index: n20/D 1.389 Storage: 2-8C UNSPSC Code: 12352100