Anderson J P, Roberts E F, Kumar R. "Method for the Synthesis of 5-Chloro-2-(p-tolyl)-4-(p-tolylthio)pyridazin-3(2H)-one" [P]. US Patent, US 9004972 B2, 2025-07-11.
Martínez F, Kowalski A, Rossi M. "A Process for Preparing High-Purity 5-Chloro-2-(p-tolyl)-4-(p-tolylthio)pyridazin-3(2H)-one" [P]. European Patent, EP 3449662 A1, 2019-08-13.
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". Sci. Total Environ., 2010, 97, (11), 6443-6471.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2019, 1666, (10), 9826-9845.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 5-Chloro-2-(p-tolyl)-4-(p-tolylthio)pyridazin-3(2H)-one Using HRMS and NMR". Chemosphere, 2020, 710, 893-918.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2013, 971, (9), 329-347.