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发明人林芳,韩伟,唐晓军. "A Process for Preparing High-Purity N1-methyl-N1-((3-methylthiophen-2-yl)methyl)ethane-1,2-diamine" [P]. 中国发明专利, 专利号 CN 114144582 B, 授权公告日 2021-05-18.
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