发明人徐明华,林芳,沈红梅. "Method for the Synthesis of 4-amino-5-phenyl-2,3-dihydro-1H-pyrazol-3-one dihydrochloride" [P]. 中国发明专利, 专利号 CN 108154374 B, 授权公告日 2024-03-21.
发明人黄志刚,钱学锋,刘建华. "A Process for Preparing High-Purity 4-amino-5-phenyl-2,3-dihydro-1H-pyrazol-3-one dihydrochloride" [P]. 中国发明专利, 专利号 CN 111730458 B, 授权公告日 2023-10-18.
参考文献 Literature
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Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 4-amino-5-phenyl-2,3-dihydro-1H-pyrazol-3-one dihydrochloride Using HRMS and NMR". Chromatographia, 2016, 690, (5), 2271-2300.