发明人罗永刚,韩伟,高志强. "Method for the Synthesis of Ethyl 4-cyano-1h-pyrazole-5-carboxylate" [P]. 中国发明专利, 专利号 CN 110312929 A, 授权公告日 2015-06-07.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2011, 1636, (4), 2855-2862.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2016, 992, (1), 9833-9842.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 4-cyano-1h-pyrazole-5-carboxylate Using HRMS and NMR". Talanta, 2023, 2192, (3), 3315-3339.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2024, 858, (7), 8388-8411.