Information card for entry 3500169

Structure parameters

• Common name: fomepizole hemisulfate
• Chemical name: 4-methylpyrazole hemisulfate
• Formula: C8 H14 N4 O4 S
• Calculated formula: C8 N4 O4 S
• Title of publication: Fomepizole hemisulfate
• Authors of publication: Armel Le Bail
• Journal of publication: Personal communication to COD
• Year of publication: 2026
• a: 11.0998 ± 0.0003 Å
• b: 11.0998 ± 0.0003 Å
• c: 10.693 ± 0.0003 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 1317.44 ± 0.06 ų
• Cell temperature: 296 K
• Number of distinct elements: 5
• Space group number: 82
• Hermann-Mauguin space group symbol: I -4
• Hall space group symbol: I -4
• Residual factor R(I) for significantly intense reflections: 2.2193
• Method of determination: powder diffraction
• Diffraction radiation wavelength: 1.5418 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No