发明人郑宇鹏,林芳,李文辉. "Method for the Synthesis of Hydroxyzine Impurity B Hydrochloride salt" [P]. 中国发明专利, 专利号 CN 109327382 B, 授权公告日 2021-06-06.
发明人张德明,黄志刚,郭海燕. "A Process for Preparing High-Purity Hydroxyzine Impurity B Hydrochloride salt" [P]. 中国发明专利, 专利号 CN 109781503 A, 授权公告日 2023-01-22.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2023, 1638, 1064-1072.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2022, 2024, (6), 8342-8366.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Hydroxyzine Impurity B Hydrochloride salt Using HRMS and NMR". J. Chromatogr. A, 2012, 1499, (12), 7802-7806.