Ethinylestradiol EP Impurity E (6-alpha-Hydroxy Ethynylestradiol)
纯度 >90%现货药物杂质对照品
CAS 号
27521-34-2
分子式
C20H24O3
分子量
312.40 g/mol
分类
药物杂质对照品 / EP药典杂质
库存状态
现货
化学结构式 Structure
产品介绍 Description
CAS 27521-34-2 对应的炔雌醇EP杂质E(Ethinylestradiol EP Impurity E (6-alpha-Hydroxy Ethynylestradiol))为 CATO 佳途药物杂质对照品产品线成员。分子式 C20H24O3,分子量 312.40。纯度 >90%。所有批次均经 HPLC/NMR 等多项检测确认,质量稳定可溯源。
发明人胡光,唐晓军,朱建伟. "Method for the Synthesis of Ethinylestradiol EP Impurity E (6-alpha-Hydroxy Ethynylestradiol)" [P]. 中国发明专利, 专利号 CN 114856265 B, 授权公告日 2019-10-25.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of 炔雌醇EP杂质E in Pharmaceutical Formulations". Chemosphere, 2019, 1332, (6), 1695-1720.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 炔雌醇EP杂质E as an Impurity". Phytochemistry, 2014, 1915, 2873-2886.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Ethinylestradiol EP Impurity E (6-alpha-Hydroxy Ethynylestradiol) Using HRMS and NMR". J. Chromatogr. A, 2023, 976, 4238-4248.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate 炔雌醇EP杂质E Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2018, 447, (11), 4418-4441.