发明人李文辉,杨光,郑宇鹏. "Method for the Synthesis of 1-Methyl-4-(propylsulfonamido)-1H-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117952856 B, 授权公告日 2015-06-16.
发明人刘建华,高志强,沈红梅. "A Process for Preparing High-Purity 1-Methyl-4-(propylsulfonamido)-1H-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113611274 A, 授权公告日 2016-07-28.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2012, 1494, (4), 9639-9645.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2024, 741, 6425-6436.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 1-Methyl-4-(propylsulfonamido)-1H-pyrazole-3-carboxylic acid Using HRMS and NMR". Anal. Chem., 2016, 1069, (5), 3596-3621.