Phthalic anhydride, min. 98 %, for synthesis, Molar mass (M) 148,12 g/mol, Density (D) 1,53 g/cm³, Flash point (flp) 152 °C, Boiling point (bp) 284,5 °C, CAS No. [85-44-9], UN-Nr. 2214, EG-Nr. 201-607-5, Empirical formula C8H4O3