Williams B T, Mueller T, Yamamoto T. "Method for the Synthesis of 4-Bromo-1-ethyl-5-(trifluoromethyl)-1h-pyrazole" [P]. US Patent, US 11884266 B2, 2025-09-11.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2014, 1692, 8917-8924.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2018, 2084, 9553-9577.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4-Bromo-1-ethyl-5-(trifluoromethyl)-1h-pyrazole Using HRMS and NMR". Anal. Chem., 2022, 1840, (6), 4954-4957.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2025, 1368, 6491-6506.