发明人徐明华,何建平,王建平. "Method for the Synthesis of 2,5-Dichlorothiophene-3-sulfonic acid" [P]. 中国发明专利, 专利号 CN 115996472 B, 授权公告日 2019-12-21.
发明人李文辉,杨光,朱建伟. "A Process for Preparing High-Purity 2,5-Dichlorothiophene-3-sulfonic acid" [P]. 中国发明专利, 专利号 CN 108906022 B, 授权公告日 2021-02-09.
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