发明人李文辉,张德明,沈红梅. "Method for the Synthesis of 5-(Phenylamino)-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 115789859 B, 授权公告日 2024-07-06.
发明人冯建国,孙丽萍,赵玉洁. "A Process for Preparing High-Purity 5-(Phenylamino)-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 109742482 A, 授权公告日 2018-09-25.
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