2-Butanone, min. 99.5 %, for synthesis, Molar mass (M) 72,11 g/mol, Density (D) 0,81 g/cm³, Flash point (flp) -8 °C, Boiling point (bp) 79 to 80 °C, CAS No. [78-93-3], UN-Nr. 1193, EG-Nr. 201-159-0, Empirical formula C4H8O