发明人王建平,刘建华,朱建伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110936715 A, 授权公告日 2018-07-02.
发明人郑宇鹏,郭海燕,徐明华. "Method for the Synthesis of 4-Ethyl-1H-pyrazole-1-carbonyl chloride" [P]. 中国发明专利, 专利号 CN 109690307 B, 授权公告日 2019-03-20.
发明人刘建华,杨光,罗永刚. "A Process for Preparing High-Purity 4-Ethyl-1H-pyrazole-1-carbonyl chloride" [P]. 中国发明专利, 专利号 CN 109501231 A, 授权公告日 2017-06-21.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2019, 2308, (10), 9848-9862.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2020, 1681, (10), 441-471.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethyl-1H-pyrazole-1-carbonyl chloride Using HRMS and NMR". Talanta, 2023, 1499, (9), 3939-3954.