苯海拉明EP杂质C HCl(Diphenhydramine EP Impurity C HCl,CAS 号 1808-12-4)是 CATO 佳途自主生产的药物杂质对照品,分子式 C17H20BrNO HCl。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。
Thompson G K, Chen K W, Hughes D C. "Method for the Synthesis of Diphenhydramine EP Impurity C HCl" [P]. US Patent, US 10150079 B2, 2015-08-07.
Davis P L, Yamamoto T, Roberts E F. "A Process for Preparing High-Purity Diphenhydramine EP Impurity C HCl" [P]. US Patent, US 10600442 B2, 2017-06-03.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of 苯海拉明EP杂质C HCl in Pharmaceutical Formulations". Food Chem., 2022, 550, (1), 5804-5815.
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Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Diphenhydramine EP Impurity C HCl Using HRMS and NMR". J. Sep. Sci., 2014, 2288, (1), 8298-8318.