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发明人孙丽萍,何建平,罗永刚. "A Process for Preparing High-Purity 2-(4-Chloro-2-(difluoromethyl)-6-(trifluoromethyl)pyridin-3-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 112410246 B, 授权公告日 2023-05-27.
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