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发明人张德明,郭海燕,韩伟. "A Process for Preparing High-Purity 3-Chloro-2-(4-fluoro-3-nitrophenyl)-5-(trifluoromethyl)pyridine 1-oxide" [P]. 中国发明专利, 专利号 CN 110535632 B, 授权公告日 2016-08-12.
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