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发明人罗永刚,周伟,林芳. "A Process for Preparing High-Purity 5-Methyl-3-(prop-2-yn-1-yloxy)thiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117452753 B, 授权公告日 2019-05-21.
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