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organic compounds
In the title compound, C11H16N2O2, inversion-related molecules form an O—H
O and N—HO hydrogen-bonded dimer. The hydrogen bonds generate rings of motifs 
(6) and 
(10). Weak π–π interactions between the dimers stabilize the crystal packing.
O and N—HO hydrogen-bonded dimer. The hydrogen bonds generate rings of motifs 
(6) and 
(10). Weak π–π interactions between the dimers stabilize the crystal packing.organic compounds
The title compound, C6H12O4, exists in a chair form, with three of the four OH groups equatorially disposed. All four hydroxy groups participate in extensive intermolecular O—HO hydrogen bonding.
O hydrogen bonding.
