发明人孙丽萍,唐晓军,郑宇鹏. "Method for the Synthesis of Vitamin Impurity 50" [P]. 中国发明专利, 专利号 CN 113486278 B, 授权公告日 2017-02-08.
发明人沈红梅,冯建国,林芳. "A Process for Preparing High-Purity Vitamin Impurity 50" [P]. 中国发明专利, 专利号 CN 117916845 B, 授权公告日 2025-12-20.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of 维生素杂质50 in Pharmaceutical Formulations". J. Sep. Sci., 2012, 1266, (7), 1273-1287.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of 维生素杂质50 as an Impurity". Sci. Total Environ., 2021, 2038, (10), 2357-2368.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of Vitamin Impurity 50 Using HRMS and NMR". Anal. Methods, 2010, 1887, (10), 4802-4809.