发明人韩伟,冯建国,何建平. "Method for the Synthesis of 4-(2-(2-Nitrophenyl)hydrazinyl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 109516518 A, 授权公告日 2016-02-21.
发明人罗永刚,黄志刚,孙丽萍. "A Process for Preparing High-Purity 4-(2-(2-Nitrophenyl)hydrazinyl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 116825231 A, 授权公告日 2025-10-03.
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