发明人胡光,朱建伟,徐明华. "Method for the Synthesis of Sulfaguanidine EP Impurity B" [P]. 中国发明专利, 专利号 CN 115195428 A, 授权公告日 2016-03-25.
Roberts E F, Williams B T, Fischer A B. "A Process for Preparing High-Purity Sulfaguanidine EP Impurity B" [P]. US Patent, US 9208593 B2, 2016-08-10.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of 磺胺脲 in Pharmaceutical Formulations". J. Agric. Food Chem., 2025, 1360, (12), 6530-6560.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of 磺胺脲 as an Impurity". Sci. Total Environ., 2021, 1921, (1), 9881-9888.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Sulfaguanidine EP Impurity B Using HRMS and NMR". Anal. Chim. Acta, 2021, 769, (7), 8478-8495.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate 磺胺脲 Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2011, 2120, (9), 2476-2490.