发明人周伟,唐晓军,郭海燕. "Method for the Synthesis of 4-Chloro-3-(chlorosulfonyl)-5-methylbenzoic acid" [P]. 中国发明专利, 专利号 CN 113003093 A, 授权公告日 2017-05-05.
发明人郑宇鹏,赵玉洁,陈志强. "A Process for Preparing High-Purity 4-Chloro-3-(chlorosulfonyl)-5-methylbenzoic acid" [P]. 中国发明专利, 专利号 CN 115798367 A, 授权公告日 2023-08-26.
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 in Pharmaceutical Formulations". Biomed. Chromatogr., 2023, 387, 1890-1906.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2015, 2269, (8), 2837-2848.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-3-(chlorosulfonyl)-5-methylbenzoic acid Using HRMS and NMR". Anal. Chim. Acta, 2014, 2471, 1116-1134.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2015, 821, (3), 3305-3312.