Thompson G K, Williams B T, Davis P L. "Method for the Synthesis of 4-Bromo-3-ethyl-5-methyl-1H-pyrazole" [P]. US Patent, US 10663964 B2, 2023-11-06.
Nowak P, Sørensen M, Nielsen H. "A Process for Preparing High-Purity 4-Bromo-3-ethyl-5-methyl-1H-pyrazole" [P]. European Patent, EP 3567018 A1, 2021-07-23.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2012, 440, (6), 2732-2741.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2023, 1264, (7), 7334-7340.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 4-Bromo-3-ethyl-5-methyl-1H-pyrazole Using HRMS and NMR". Food Chem., 2023, 1084, (1), 6492-6505.