发明人徐明华,郭海燕,罗永刚. "Method for the Synthesis of 4-Amino-3-(2,4-dihydroxyphenyl)-1H-1,2,4-triazole-5(4H)-thione" [P]. 中国发明专利, 专利号 CN 115117005 A, 授权公告日 2024-12-16.
发明人何建平,孙丽萍,郭海燕. "A Process for Preparing High-Purity 4-Amino-3-(2,4-dihydroxyphenyl)-1H-1,2,4-triazole-5(4H)-thione" [P]. 中国发明专利, 专利号 CN 108507934 B, 授权公告日 2015-01-17.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2014, 2008, (2), 5378-5395.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2020, 2393, 6672-6677.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-3-(2,4-dihydroxyphenyl)-1H-1,2,4-triazole-5(4H)-thione Using HRMS and NMR". J. Sep. Sci., 2015, 1645, 5345-5355.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2016, 850, 334-343.