发明人唐晓军,胡光,张德明. "Method for the Synthesis of 4-Nitro-1-propyl-1h-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112947233 B, 授权公告日 2020-09-19.
Kowalski A, Nowak P, Schröder R. "A Process for Preparing High-Purity 4-Nitro-1-propyl-1h-pyrazole-3-carboxylic acid" [P]. European Patent, EP 3662665 A1, 2018-03-28.
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". Environ. Sci. Technol., 2012, 469, (1), 6314-6324.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2016, 2323, (6), 9353-9383.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 4-Nitro-1-propyl-1h-pyrazole-3-carboxylic acid Using HRMS and NMR". J. Sep. Sci., 2016, 1757, (8), 1460-1469.