Acta Cryst. (2006). E62, o4567-o4568 [ doi:10.1107/S1600536806037652 ]
Abstract: The title compound, C10H26N2O22+·C2O22-·5H2O, is the oxalate salt of the drug ethambutol. Both the ethambutol cation and the oxalate anion lie about a crystallographic twofold axis which bisects the central C-C bonds of both ions. The O atom of one solvent water molecule also lies on a twofold axis. The crystal structure is stabilized by intermolecular O-HN and N-HO hydrogen bonds.
Online 22 September 2006
Copyright © International Union of Crystallography