发明人何建平,徐明华,朱建伟. "Method for the Synthesis of 1-Ethyl-3-methyl-1H-pyrazole-4-carbohydrazide" [P]. 中国发明专利, 专利号 CN 109050538 A, 授权公告日 2015-02-19.
发明人沈红梅,黄志刚,胡光. "A Process for Preparing High-Purity 1-Ethyl-3-methyl-1H-pyrazole-4-carbohydrazide" [P]. 中国发明专利, 专利号 CN 113478738 B, 授权公告日 2021-06-21.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2023, 1138, (7), 925-951.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2023, 1696, (1), 7441-7470.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-3-methyl-1H-pyrazole-4-carbohydrazide Using HRMS and NMR". Talanta, 2020, 1173, (11), 8646-8658.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2014, 775, (2), 310-314.