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The title compound, C5H8Cl2O2, represents a meso isomer crystallizing in a chiral space group with two mol­ecules per asymmetric unit. The mol­ecules form helical associates with a pitch of 6.31 Å along the a axis via O—H...O hydrogen bonds. The overall three-dimesional supra­molecular architecture is stabilized by C—Cl...O halogen bonding, with a Cl...O separation of 3.139 (3) Å and a C—Cl...O angle of 162.5 (2)°.
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