Acta Cryst. (2007). E63, o1095-o1096  [ doi:10.1107/S1600536807003480 ]

(2R,2'S)-2,2'-(Ethane-1,2-diyldiiminio)bis(butane-2,1-diyl) disulfate dihydrate

G.-Y. Bai, C.-F. Zhang, J. Simpson, Y. Chen and H.-W. Peng

Abstract: The title compound, C₁₀H₂₈N₂O₁₀S₂, was synthesized by the reaction of concentrated sulfuric acid with (R,S)-ethambutol. The zwitterionic amino-sulfate system, protonated at both N atoms, lies about a centre of symmetry. The asymmetric unit also contains a solvent water molecule. In the crystal structure, intermolecular O-HN and N-HO hydrogen bonds link the molecules into a three-dimensional network.

Online 7 February 2007

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