发明人唐晓军,周伟,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114339257 A, 授权公告日 2023-05-26.
发明人徐明华,马晓峰,张德明. "Method for the Synthesis of (E)-5-((2-Carboxyphenyl)diazenyl)-2-hydroxybenzoic Acid" [P]. 中国发明专利, 专利号 CN 117381149 B, 授权公告日 2022-08-21.
发明人王建平,罗永刚,陈志强. "A Process for Preparing High-Purity (E)-5-((2-Carboxyphenyl)diazenyl)-2-hydroxybenzoic Acid" [P]. 中国发明专利, 专利号 CN 114562792 A, 授权公告日 2018-07-22.
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