Tetrahydrofuran D8, 99,5 Atom%D, Molar mass (M) 80,17 g/mol, Density (D) 0,89 g/cm³, Flash point (flp) -20 °C, Boiling point (bp) 65 °C, CAS No. [1693-74-9], UN-Nr. 2056, EG-Nr. 216-898-4, Empirical formula C4D8O