S. N. Narendra Babu, Aisyah Saad Abdul Rahim, S. Abd Hamid
Aug 8, 2009
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Acta Crystallographica Section E: Structure Reports Online
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—H⋯O and C—H⋯O hydrogen bonds.