发明人马晓峰,杨光,张德明. "Method for the Synthesis of 5-methyl-1-[4-(trifluoromethyl)phenyl]-1H-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117598880 B, 授权公告日 2024-06-25.
发明人李文辉,陈志强,冯建国. "A Process for Preparing High-Purity 5-methyl-1-[4-(trifluoromethyl)phenyl]-1H-pyrazole-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110046567 B, 授权公告日 2019-10-19.
参考文献 Literature
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Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-methyl-1-[4-(trifluoromethyl)phenyl]-1H-pyrazole-4-carboxylic acid as an Impurity". Biomed. Chromatogr., 2014, 998, (10), 6999-7022.