发明人陈志强,冯建国,郑宇鹏. "Method for the Synthesis of (E)-4-(2-(3,5-dihydroxybenzoyl)hydrazinyl)-4-oxobut-2-enoic acid" [P]. 中国发明专利, 专利号 CN 113750750 B, 授权公告日 2021-04-25.
发明人胡光,黄志刚,张德明. "A Process for Preparing High-Purity (E)-4-(2-(3,5-dihydroxybenzoyl)hydrazinyl)-4-oxobut-2-enoic acid" [P]. 中国发明专利, 专利号 CN 108114473 A, 授权公告日 2025-07-07.
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