Geneticin disulphate (G418)-solution, 50 mg/ml, BioScience-Grade, sterile, ready-to-use, Molar mass (M) 692,70 g/mol, Density (D) 1 g/cm³, Boiling point (bp) 100 °C, Storage temp. +4 °C, CAS No. [108321-42-2], Empirical formula C20H40N4O10 · 2 H2SO4