Imidazole, min. 99 %, Molar mass (M) 68,08 g/mol, Density (D) 1,233 g/cm³, Flash point (flp) 145 °C, Boiling point (bp) 256 to 268 °C, CAS No. [288-32-4], UN-Nr. 3263, EG-Nr. 206-019-2, Empirical formula C3H4N2