氯胍EP杂质D(Proguanil EP Impurity D Hydrochloride,CAS 号 35708-82-8)是 CATO 佳途自主生产的药物杂质对照品,分子式 C8H19N5 HCl。纯度 97%+。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。
发明人高志强,马晓峰,沈红梅. "一种氯胍EP杂质D的合成方法" [P]. 中国发明专利, 专利号 CN 115950505 A, 授权公告日 2023-11-11.
Fischer A B, Johnson M A, Williams B T. "Method for the Synthesis of Proguanil EP Impurity D Hydrochloride" [P]. US Patent, US 10188552 B2, 2021-02-09.
参考文献 Literature
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O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of 氯胍EP杂质D as an Impurity". J. Sep. Sci., 2022, 745, (11), 3586-3595.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of Proguanil EP Impurity D Hydrochloride Using HRMS and NMR". Chemosphere, 2013, 397, (5), 1323-1348.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate 氯胍EP杂质D Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2024, 1643, (12), 886-889.