Thiamine hydrochloride, min. 98.5 %, for biochemistry, Molar mass (M) 337,27 g/mol, Density (D) 0,414 g/cm³, Storage temp. +4 °C, CAS No. [67-03-8], EG-Nr. 200-641-8, Empirical formula C12H17ClN4OS · HCl