In the title compound, C(9)H(11)NO(3), the oxime grouping is twisted by 12.68 (6)° with respect to the dimethoxyl-benzene ring. In the crystal, mol-ecules are linked into an infinite [100] chain via O-H⋯N hydrogen bonds, instead of the more common oxime packing motif of dimers with an R(2) (2)(6) graph-set motif.
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