发明人徐明华,赵玉洁,胡光. "一种胆钙化醇EP杂质A的合成方法" [P]. 中国发明专利, 专利号 CN 112970339 A, 授权公告日 2016-07-10.
Davis P L, Johnson M A, Thompson G K. "Method for the Synthesis of Cholecalciferol EP Impurity A" [P]. US Patent, US 11486185 B2, 2016-02-04.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of 胆钙化醇EP杂质A in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2015, 1974, 1051-1079.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 胆钙化醇EP杂质A as an Impurity". Food Chem., 2019, 958, (2), 8473-8476.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Cholecalciferol EP Impurity A Using HRMS and NMR". J. Sep. Sci., 2025, 260, (8), 4393-4417.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate 胆钙化醇EP杂质A Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2011, 1320, 3721-3730.