Acta Cryst. (2004). E60, o1694-o1696  [ doi:10.1107/S1600536804021233 ]

2-Hydroxyethanaminium enrofloxacinate

H.-X. Sun, Y. Li and Y.-J. Pan

Abstract: The title compound hydroxyethylammonium enrofloxacinate [systematic name: 2-hydroxyethanaminium 1-cyclopropyl-7-(4-ethylpiperazin-1-yl)-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate], C₂H₈NO⁺·C₁₉H₂₁FN₃O₃^-, contains enrofloxacinate anions and 2-hydroxyethanaminium cations. The quinoline ring system in the anions is essentially planar. The piperazine moiety adopts a chair conformation. The cations lie parallel to each other about inversion centers. The structure is stabilized by strong intermolecular hydrogen bonds involving the carbonyl, carboxyl and terminal piperazine N groups of the anion and the hydroxyl and ammonium groups of the cation.

Online 11 September 2004

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