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发明人郭海燕,马晓峰,徐明华. "A Process for Preparing High-Purity 4-(2-(5-Chlorothiophen-2-yl)-2-oxoethoxy)benzonitrile" [P]. 中国发明专利, 专利号 CN 115569839 A, 授权公告日 2015-11-03.
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