Acta Cryst. (2012). E68, o3199-o3200
[ doi:10.1107/S1600536812043280 ]

3-Ethyl-3-hydroxy-8-methoxyquinoline-2,4(1H,3H)-dione monohydrate

S. Kafka, A. Pevec, K. Proisl, R. Kimmel and J. Kosmrlj

Abstract: In the title hydrate, C₁₂H₁₃NO₄·H₂O, the piperidine ring that is fused to the benzene ring is in a sofa conformation with the chiral C atom lying 0.4084 (18) Å out of the plane of the nine fused-ring atoms. In the crystal, O-HO and N-HO hydrogen bonds link the organic molecules and water molecules into chains running along the b-axis direction. The chains are further connected into layers parallel to the bc plane by - interactions between inversion-related benzene rings [centroid-centroid distance = 3.8846 (9) Å].

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