发明人冯建国,徐明华,杨光. "Method for the Synthesis of 4-Ethyl-7-(2-oxopropoxy)-2H-chromen-2-one" [P]. 中国发明专利, 专利号 CN 113206351 B, 授权公告日 2018-04-10.
发明人黄志刚,王建平,沈红梅. "A Process for Preparing High-Purity 4-Ethyl-7-(2-oxopropoxy)-2H-chromen-2-one" [P]. 中国发明专利, 专利号 CN 108962264 B, 授权公告日 2020-09-01.
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