发明人冯建国,郭海燕,沈红梅. "Method for the Synthesis of 5-ethyl-1-[3-(trifluoromethyl)phenyl]-1H-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112846022 B, 授权公告日 2025-03-08.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of 5-ethyl-1-[3-(trifluoromethyl)phenyl]-1H-pyrazole-4-carboxylic acid in Pharmaceutical Formulations". Food Chem., 2014, 516, (3), 9783-9808.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-ethyl-1-[3-(trifluoromethyl)phenyl]-1H-pyrazole-4-carboxylic acid as an Impurity". Chemosphere, 2025, 1676, (1), 2919-2946.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 5-ethyl-1-[3-(trifluoromethyl)phenyl]-1H-pyrazole-4-carboxylic acid Using HRMS and NMR". Anal. Methods, 2024, 1920, 3059-3065.