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Acta Cryst. (2009). E65, o2070-o2071 [ doi:10.1107/S1600536809029754 ]
Abstract: In the crystal structure of the title compound, C13H18N2O4, the asymmetric unit consists of three crystallographically independent ethyl 4-butylamino-3-nitrobenzoate molecules. There is an intramolecular N-H
O hydrogen bond in each molecule, which generates an S(6) ring motif. The structure is stabilized by intermolecular N-HO and C-HO hydrogen bonds.
Online 8 August 2009
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