Information card for entry 2202514

Structure parameters

• Common name: Levetiracetam
• Chemical name: (-)-(S)-α-ethyl-2-oxo-1-pyrrolidineacetamide (2S)-2-(2-Oxo-pyrrolidin-1-yl)butanamide
• Formula: C8 H14 N2 O2
• Calculated formula: C8 H14 N2 O2
• SMILES: O=C1N(CCC1)[C@H](C(=O)N)CC
• Title of publication: 2-(2-Oxopyrrolidin-1-yl)butyramide
• Authors of publication: Song, Jian; Lou, Ke-Xia; Li, Xiao-Jun; Wu, Xiao-Ping; Feng, Rong-Xiu
• Journal of publication: Acta Crystallographica Section E
• Year of publication: 2003
• Journal volume: 59
• Journal issue: 11
• Pages of publication: o1772 - o1773
• a: 6.272 ± 0.005 Å
• b: 7.993 ± 0.005 Å
• c: 9.199 ± 0.007 Å
• α: 90°
• β: 108.645 ± 0.009°
• γ: 90°
• Cell volume: 437 ± 0.6 ų
• Cell temperature: 293 ± 2 K
• Ambient diffraction temperature: 293 ± 2 K
• Number of distinct elements: 4
• Space group number: 4
• Hermann-Mauguin space group symbol: P 1 21 1
• Hall space group symbol: P 2yb
• Residual factor for all reflections: 0.0701
• Residual factor for significantly intense reflections: 0.0448
• Weighted residual factors for significantly intense reflections: 0.1317
• Weighted residual factors for all reflections included in the refinement: 0.1442
• Goodness-of-fit parameter for all reflections included in the refinement: 1.081
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes