1,2-Dichlorobenzene D4, 99 Atom%D, Molar mass (M) 151,03 g/mol, Density (D) ~1,34 g/cm³, Flash point (flp) 66 °C, Boiling point (bp) 180,5 °C, CAS No. [2199-69-1], UN-Nr. 1591, EG-Nr. 218-606-0, Empirical formula C6D4Cl2