Synonyms: Acetic anhydride; Acetyl acetate, Acetyl oxide Molecular Formula: C4H6O3 Molecular Weight: 102.09 Linear Structural Formula: (CH3CO)2O MDL Number: MFCD00008705 Purity: >=98.0% (GC) Melting Point: -73 C Density: 1.08 g/cm3 at 20 C