Information card for entry 2108575

Structure parameters

• Common name: Benzocaine
• Chemical name: 4-aminobenzoic acid ethyl ester
• Formula: C9 H11 N O2
• Calculated formula: C9 H11 N O2
• SMILES: O=C(c1ccc(N)cc1)OCC
• Title of publication: A new high-pressure benzocaine polymorph — towards understanding the molecular aggregation in crystals of an important active pharmaceutical ingredient (API)
• Authors of publication: Patyk-Kaźmierczak, Ewa; Kaźmierczak, Michał
• Journal of publication: Acta Crystallographica Section B
• Year of publication: 2020
• Journal volume: 76
• Journal issue: 1
• a: 8.1928 ± 0.0006 Å
• b: 5.4539 ± 0.0005 Å
• c: 20.07 ± 0.05 Å
• α: 90°
• β: 91.47 ± 0.04°
• γ: 90°
• Cell volume: 896 ± 2 ų
• Cell temperature: 295 K
• Ambient diffraction temperature: 295 K
• Number of distinct elements: 4
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/c 1
• Hall space group symbol: -P 2ybc
• Residual factor for all reflections: 0.1218
• Residual factor for significantly intense reflections: 0.061
• Weighted residual factors for significantly intense reflections: 0.1485
• Weighted residual factors for all reflections included in the refinement: 0.1681
• Goodness-of-fit parameter for all reflections included in the refinement: 0.962
• Diffraction radiation probe: x-ray
• Diffraction radiation wavelength: 0.71073 Å
• Diffraction radiation type: MoKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: Yes