发明人郭海燕,朱建伟,何建平. "Method for the Synthesis of 4-Ethyl-5-hydroxy-7-methyl-2H-chromen-2-one" [P]. 中国发明专利, 专利号 CN 112334703 A, 授权公告日 2022-02-05.
发明人高志强,郑宇鹏,李文辉. "A Process for Preparing High-Purity 4-Ethyl-5-hydroxy-7-methyl-2H-chromen-2-one" [P]. 中国发明专利, 专利号 CN 117007598 A, 授权公告日 2020-07-12.
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