Information card for entry 1573579

Structure parameters

• Common name: meloxicam
• Chemical name: 4-hydroxy-2-methyl-N-(5-methyl-1,3-thiazol-2-yl)-2H-1,2-benzothiazine-3-carboxamide
• Formula: C14 H13 N3 O4 S2
• Calculated formula: C14 H13 N3 O4 S2
• Title of publication: SCXRD, CSP-NMRX and microED in the quest for three elusive polymorphs of meloxicam.
• Authors of publication: Jeziorna, Agata; Malinska, Maura; Sugden, Isaac; Paluch, Piotr; Dolot, Rafał; Dudek, Marta K.
• Journal of publication: IUCrJ
• Year of publication: 2025
• Journal volume: 12
• Journal issue: 1
• a: 11.2439 ± 0.0002 Å
• b: 11.2772 ± 0.0002 Å
• c: 13.4027 ± 0.0002 Å
• α: 65.901 ± 0.002°
• β: 87.254 ± 0.001°
• γ: 79.439 ± 0.001°
• Cell volume: 1524.37 ± 0.05 ų
• Cell temperature: 100 ± 0.1 K
• Ambient diffraction temperature: 100 ± 0.1 K
• Number of distinct elements: 5
• Space group number: 2
• Hermann-Mauguin space group symbol: P -1
• Hall space group symbol: -P 1
• Residual factor for all reflections: 0.0356
• Residual factor for significantly intense reflections: 0.0328
• Weighted residual factors for significantly intense reflections: 0.0901
• Weighted residual factors for all reflections included in the refinement: 0.0915
• Goodness-of-fit parameter for all reflections included in the refinement: 1.074
• Diffraction radiation probe: x-ray
• Diffraction radiation wavelength: 1.54184 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No