Cyanocobalamin EP Impurity E (8-epi-cyanocobalamin)
纯度 >90%现货药物杂质对照品
CAS 号
41325-63-7
分子式
C63H88CoN14O14P
分子量
1355.37 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
维生素B12 EP杂质E(Cyanocobalamin EP Impurity E (8-epi-cyanocobalamin),CAS 号 41325-63-7)是 CATO 佳途自主生产的药物杂质对照品,分子式 C63H88CoN14O14P,分子量 1355.37。纯度 >90%。本品采用严格的质量控制体系生产,附 COA 证书,适用于药物研发、质量控制和法规申报等场景。
发明人周伟,陈志强,马晓峰. "Method for the Synthesis of Cyanocobalamin EP Impurity E (8-epi-cyanocobalamin)" [P]. 中国发明专利, 专利号 CN 111555945 A, 授权公告日 2023-11-19.
Jørgensen K, Björnsson E, Rossi M. "A Process for Preparing High-Purity Cyanocobalamin EP Impurity E (8-epi-cyanocobalamin)" [P]. European Patent, EP 3726308 A1, 2024-05-11.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of 维生素B12 EP杂质E in Pharmaceutical Formulations". Chemosphere, 2010, 277, 696-704.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 维生素B12 EP杂质E as an Impurity". Anal. Chim. Acta, 2012, 2340, 835-850.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Cyanocobalamin EP Impurity E (8-epi-cyanocobalamin) Using HRMS and NMR". Phytochemistry, 2014, 1070, (2), 9932-9946.