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发明人赵玉洁,孙丽萍,陈志强. "A Process for Preparing High-Purity 4-Chloro-5-fluoro-2-(4-nitrophenyl)pyridazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 108533210 A, 授权公告日 2017-04-20.
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