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In the title compound, C16H12F2O3, the plane of the phenyl ring makes a dihedral angle of 3.22 (8)° with that of the benzene ring. The mol­ecule has an E conformation about the C=C bond. In the crystal, mol­ecules are linked via pairs of O—H...O hydrogen bonds, forming inversion dimers which are further consolidated by a pair of C—H...O hydrogen bonds. The dimers are linked via C—H...O hydrogen bonds, forming columns along the b-axis direction.
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