发明人徐明华,周伟,林芳. "Method for the Synthesis of 1-Methyl-1H-pyrazole-3,5-dicarboxylic acid" [P]. 中国发明专利, 专利号 CN 115788806 A, 授权公告日 2015-07-04.
Stevens L M, Williams B T, Johnson M A. "A Process for Preparing High-Purity 1-Methyl-1H-pyrazole-3,5-dicarboxylic acid" [P]. US Patent, US 9177756 B2, 2015-07-09.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2019, 667, 8973-8986.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2021, 1003, 870-874.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of 1-Methyl-1H-pyrazole-3,5-dicarboxylic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2011, 934, (7), 271-298.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2020, 1789, 4523-4533.