发明人王建平,郭海燕,胡光. "Method for the Synthesis of Folic Acid EP Impurity F" [P]. 中国发明专利, 专利号 CN 111558248 A, 授权公告日 2025-05-22.
发明人冯建国,刘建华,朱建伟. "A Process for Preparing High-Purity Folic Acid EP Impurity F" [P]. 中国发明专利, 专利号 CN 110374353 A, 授权公告日 2019-07-20.
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