Mercury(II) chloride, min. 99,5 %, p.a., ACS, Molar mass (M) 271,50 g/mol, Density (D) 5,44 g/cm³, Boiling point (bp) 302 °C, CAS No. [7487-94-7], UN-Nr. 1624, EG-Nr. 231-299-8, Empirical formula HgCl2