发明人杨光,钱学锋,沈红梅. "Method for the Synthesis of (E)-2-Hydroxy-5-((4-(N-(pyridin-2-yl)sulfamoyl)phenyl)diazenyl)benzoic acid" [P]. 中国发明专利, 专利号 CN 114120275 B, 授权公告日 2023-07-03.
发明人唐晓军,朱建伟,张德明. "A Process for Preparing High-Purity (E)-2-Hydroxy-5-((4-(N-(pyridin-2-yl)sulfamoyl)phenyl)diazenyl)benzoic acid" [P]. 中国发明专利, 专利号 CN 108863420 A, 授权公告日 2022-05-20.
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