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BC680540" [P]. 中国发明专利, 专利号 CN 111491014 A, 授权公告日 2021-06-25.
发明人孙丽萍,张德明,陈志强. "A Process for Preparing High-Purity 6-Methoxy-isochromen-1-one
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BC680540" [P]. 中国发明专利, 专利号 CN 117336528 B, 授权公告日 2025-01-28.
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