The chemical structures of the tannic substance MP-2 and the related compound MP-10 isolated from chestnut galls were established to be 2, 6-dihydroxy-4-galloyloxymethylphenyl-β-D-glucoside (4) and 2, 6-dihydroxy-4-hydroxymethylphenyl-β-D-glucoside (1), respectively, on the basis of spectral data and enzymatic degradation products.
