发明人罗永刚,韩伟,冯建国. "Method for the Synthesis of 1-Methyl-5-(p-tolyl)-1H-pyrazole-4-carbaldehyde, 97%" [P]. 中国发明专利, 专利号 CN 111352214 B, 授权公告日 2023-05-25.
发明人钱学锋,周伟,黄志刚. "A Process for Preparing High-Purity 1-Methyl-5-(p-tolyl)-1H-pyrazole-4-carbaldehyde, 97%" [P]. 中国发明专利, 专利号 CN 108839448 A, 授权公告日 2023-05-02.
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". J. Sep. Sci., 2013, 838, (11), 6369-6382.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2019, 1069, (8), 7818-7823.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 1-Methyl-5-(p-tolyl)-1H-pyrazole-4-carbaldehyde, 97% Using HRMS and NMR". J. Chromatogr. A, 2014, 1900, 4811-4822.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2014, 2055, 8945-8952.