Butylated hydroxytoluene, min. 99,7 %, for synthesis, Molar mass (M) 220,34 g/mol, Density (D) 1,03 g/cm³, Flash point (flp) 127 °C, Boiling point (bp) 265 °C, CAS No. [128-37-0], UN-Nr. 3077, EG-Nr. 204-881-4, Empirical formula C15H24O