发明人刘建华,何建平,徐明华. "Method for the Synthesis of 4,5-Dichloro-3-(prop-2-yn-1-yloxy)thiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109915216 B, 授权公告日 2016-08-14.
发明人沈红梅,黄志刚,罗永刚. "A Process for Preparing High-Purity 4,5-Dichloro-3-(prop-2-yn-1-yloxy)thiophene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112854366 B, 授权公告日 2017-07-23.
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