Information card for entry 7251839

Structure parameters

• Formula: C20 H34 O3
• Calculated formula: C20 H34 O3
• Title of publication: ent-Pimarane diterpenoids from the aerial parts of Sigesbeckia pubescens and their myocardial protective activity
• Authors of publication: Li, Wanting; Xia, Guiyang; Xia, Jinyu; Liu, Qiyao; Wu, Xuefen; Zhou, Linnan; Wei, Xiaohong; Xia, Huan; Lin, Sheng
• Journal of publication: RSC Advances
• Year of publication: 2026
• Journal volume: 16
• Journal issue: 19
• Pages of publication: 17310 - 17321
• a: 11.245 ± 0.0003 Å
• b: 7.2402 ± 0.0002 Å
• c: 11.579 ± 0.0003 Å
• α: 90°
• β: 99.615 ± 0.003°
• γ: 90°
• Cell volume: 929.47 ± 0.04 ų
• Cell temperature: 170 ± 0.1 K
• Ambient diffraction temperature: 170 ± 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: 0.0346
• Residual factor for significantly intense reflections: 0.0338
• Weighted residual factors for significantly intense reflections: 0.0849
• Weighted residual factors for all reflections included in the refinement: 0.0859
• Goodness-of-fit parameter for all reflections included in the refinement: 1.064
• Diffraction radiation probe: x-ray
• Diffraction radiation wavelength: 1.54184 Å
• Diffraction radiation type: CuKα
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No