Fig. 1

Chemical structure of MgIG. Systematic name, (18α, 20β)-carboxy-11-oxo-oleanorane-12-en-3β-yl-2-O-β-d-glucopyranosiduronyl-α-d-glucopyranosiduronic acid Magnesium Tetrahydrate; formula,C₄₂H₆₀MgO₁₆·4H₂O