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发明人王建平,黄志刚,杨光. "A Process for Preparing High-Purity 4-Chloro-3-(difluoromethyl)-5-fluoropyridine-2-sulfonamide" [P]. 中国发明专利, 专利号 CN 115341193 A, 授权公告日 2019-04-21.
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