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发明人张德明,刘建华,沈红梅. "A Process for Preparing High-Purity 3-{[(4-Propylphenyl)sulfonyl]amino}-thiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111527664 A, 授权公告日 2022-05-20.
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