(Z)-Methyl 3-(2,4-dichloro­phen­yl)-3-hy­droxy­acrylate

The mol­ecular structure of the title compound, C₁₀H₈Cl₂O₃, exists in a cis-enol form, which is stabilized by a strong intra­molecular O—H...O hydrogen bond. In the crystal, C—H...O inter­actions generate zigzag chains along the c axis which are, in turn, linked by further C—H...O inter­actions into sheets parallel to (100).