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发明人马晓峰,胡光,唐晓军. "A Process for Preparing High-Purity 2-(2,5-Dimethyl-1-(p-tolyl)-1H-pyrrol-3-yl)acetonitrile" [P]. 中国发明专利, 专利号 CN 109669167 A, 授权公告日 2015-04-08.
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