Butyric acid methyl ester, ROTICHROM® GC, Molar mass (M) 102,14 g/mol, Density (D) 0,9 g/cm³, Flash point (flp) 14 °C, Boiling point (bp) 102 to 103 °C, Storage temp. +4 °C, CAS No. [623-42-7], UN-Nr. 1237, EG-Nr. 210-792-1, Empirical formula C5H10O2