5,6-O-Isopropylidene-L-ascorbic acid, min. 95 %, 5 g

5,6-O-Isopropylidene-L-ascorbic acid, Molar mass (M) 216,19 g/mol, Storage temp. -20 °C, CAS No. 15042-01-0, Empirical formula C₉H₁₂O₆