Phthalic acid, min. 99 %, p.a, Molar mass (M) 166,13 g/mol, Density (D) 1,59 g/cm³, Flash point (flp) 168 °C, Boiling point (bp) 289 °C, CAS No. [88-99-3], EG-Nr. 201-873-2, Empirical formula C8H4O4