Acetic acid anhydride, min. 99 %, for synthesis, Molar mass (M) 102,09 g/mol, Density (D) 1,08 g/cm³, Flash point (flp) 49 °C, Boiling point (bp) 139,5 °C, CAS No. [108-24-7], UN-Nr. 1715, EG-Nr. 203-564-8, Empirical formula C4H6O3