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发明人郭海燕,赵玉洁,黄志刚. "A Process for Preparing High-Purity 4-Cyano-5-(difluoromethyl)-2-hydroxy-3-iodopyridine" [P]. 中国发明专利, 专利号 CN 115108601 B, 授权公告日 2019-02-25.
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