3,4-Dihydroxy-phenyl 3,4,5-trimethoxy-benzoate.

In the title compound, C(16)H(16)O(7), the dihedral angle between the two benzene rings is 82.02 (7)°. The crystal structure is stabilized by inter-molecular O-H⋯O hydrogen bonds, which link the mol-ecules into a two-dimensional network.