Yamamoto T, Chen K W, Mueller T. "Method for the Synthesis of Chlorothalonil Impurity 4" [P]. US Patent, US 10555485 B2, 2022-06-21.
发明人林芳,马晓峰,郑宇鹏. "A Process for Preparing High-Purity Chlorothalonil Impurity 4" [P]. 中国发明专利, 专利号 CN 109071960 A, 授权公告日 2022-10-23.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of Chlorothalonil Impurity4 in Pharmaceutical Formulations". Food Chem., 2018, 120, 7480-7505.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of Chlorothalonil Impurity4 as an Impurity". J. Chromatogr. A, 2024, 361, (8), 9370-9385.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Chlorothalonil Impurity 4 Using HRMS and NMR". Anal. Chim. Acta, 2013, 367, (8), 1228-1247.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Chlorothalonil Impurity4 Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2018, 1075, (2), 1611-1619.