应用场景:6-氯-2-甲基-1H-苯并 d 咪唑-4-羧酸甲酯(Methyl 6-chloro-2-methyl-1H-benzo d imidazole-4-carboxylate)作为药物标准品,在化学分析分析领域承担着重要的角色。 推荐以6-氯-2-甲基-1H-苯并 d 咪唑-4-羧酸甲酯配制标准系列工作溶液,用于建立标准曲线实现外标法定量。 建议使用甲醇/乙腈(1:1)为溶剂配制储备溶液,根据检测灵敏度需求逐级稀释。 使用建议: - 称量前将样品在干燥器内平衡至室温(约30分钟); - 储备溶液建议用甲醇/乙腈(1:1)配制,于2-8°C冷藏保存,避光,密封防潮,密闭保存防止挥发条件
发明人赵玉洁,唐晓军,徐明华. "一种6-氯-2-甲基-1H-苯并[d]咪唑-4-羧酸甲酯的合成方法" [P]. 中国发明专利, 专利号 CN 109696819 A, 授权公告日 2019-01-15.
Roberts E F, Klinger H, Schröder R. "Method for the Synthesis of Methyl 6-chloro-2-methyl-1H-benzo[d]imidazole-4-carboxylate" [P]. US Patent, US 10010526 B2, 2021-03-18.
发明人高志强,徐明华,沈红梅. "A Process for Preparing High-Purity Methyl 6-chloro-2-methyl-1H-benzo[d]imidazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 111605620 B, 授权公告日 2023-09-15.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of 6-氯-2-甲基-1H-苯并[d]咪唑-4-羧酸甲酯 in Pharmaceutical Formulations". Anal. Methods, 2018, 1599, 4847-4861.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of 6-氯-2-甲基-1H-苯并[d]咪唑-4-羧酸甲酯 as an Impurity". Biomed. Chromatogr., 2020, 1047, (4), 3204-3215.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 6-chloro-2-methyl-1H-benzo[d]imidazole-4-carboxylate Using HRMS and NMR". Talanta, 2024, 1734, (9), 2244-2247.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate 6-氯-2-甲基-1H-苯并[d]咪唑-4-羧酸甲酯 Profile in Drug Substances According to ICH Guidelines". Food Chem., 2014, 135, 432-456.