Information card for entry 1557825

Structure parameters

• Formula: C27 H33 O8
• Calculated formula: C27 H32.772 O8
• Title of publication: Unprecedented Quassinoids from Eurycoma longifolia: Biogenetic Evidence and Antifeedant Effects
• Authors of publication: Yang, Wei-Qun; Shao, Xue-Hua; Deng, Fang; Hu, Li-Jun; Xiong, Yu; Huang, Xiao-Jun; Fan, Chun-Lin; Jiang, Ren-Wang; Ye, Wen-Cai; Wang, Ying
• Journal of publication: Journal of Natural Products
• Year of publication: 2020
• a: 8.3215 ± 0.0001 Å
• b: 10.2604 ± 0.0001 Å
• c: 14.326 ± 0.0001 Å
• α: 90°
• β: 99.725 ± 0.001°
• γ: 90°
• Cell volume: 1205.6 ± 0.02 ų
• Cell temperature: 100 ± 0.1 K
• Ambient diffraction temperature: 100 ± 0.1 K
• Number of distinct elements: 3
• Space group number: 4
• Hermann-Mauguin space group symbol: P 1 21 1
• Hall space group symbol: P 2yb
• Residual factor for all reflections: 0.0362
• Residual factor for significantly intense reflections: 0.0361
• Weighted residual factors for significantly intense reflections: 0.0981
• Weighted residual factors for all reflections included in the refinement: 0.0983
• Goodness-of-fit parameter for all reflections included in the refinement: 1.067
• Diffraction radiation probe: x-ray
• Diffraction radiation wavelength: 1.54178 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: Yes
• Has Fobs: No