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发明人赵玉洁,孙丽萍,黄志刚. "A Process for Preparing High-Purity 3-(3,4-Dimethoxyphenyl)-6-ethoxy-4-methyl-2H-chromen-2-one" [P]. 中国发明专利, 专利号 CN 111588051 B, 授权公告日 2023-09-11.
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