发明人钱学锋,王建平,韩伟. "Method for the Synthesis of 4-Chloro-2-ethyl-5-(methylamino)pyridazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 108061441 A, 授权公告日 2021-04-08.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2021, 154, 7987-7991.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2015, 191, (12), 4933-4949.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4-Chloro-2-ethyl-5-(methylamino)pyridazin-3(2H)-one Using HRMS and NMR". Food Chem., 2022, 1660, (7), 8336-8351.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2012, 1108, 6531-6540.