发明人王建平,李文辉,郑宇鹏. "Method for the Synthesis of 2-Hydroxy-4-(thiophene-2-sulfonamido)benzoic acid" [P]. 中国发明专利, 专利号 CN 110265203 A, 授权公告日 2020-06-18.
Patel M V, Davis P L, Mueller T. "A Process for Preparing High-Purity 2-Hydroxy-4-(thiophene-2-sulfonamido)benzoic acid" [P]. US Patent, US 9424787 B2, 2019-08-05.
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