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发明人周伟,赵玉洁,孙丽萍. "A Process for Preparing High-Purity 2-((3-(3,4-Dimethoxyphenyl)-2-methyl-4-oxo-4H-chromen-7-yl)oxy)acetohydrazide" [P]. 中国发明专利, 专利号 CN 114204510 A, 授权公告日 2024-10-18.
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