发明人胡光,冯建国,沈红梅. "Method for the Synthesis of 5-Amino-2-(4-hydroxyphenyl)pyridazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 108533874 A, 授权公告日 2020-01-12.
发明人何建平,张德明,郭海燕. "A Process for Preparing High-Purity 5-Amino-2-(4-hydroxyphenyl)pyridazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 117936508 B, 授权公告日 2022-06-08.
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