发明人何建平,林芳,黄志刚. "Method for the Synthesis of Butylphthalide Impurity 26" [P]. 中国发明专利, 专利号 CN 116840519 A, 授权公告日 2019-02-27.
发明人张德明,王建平,孙丽萍. "A Process for Preparing High-Purity Butylphthalide Impurity 26" [P]. 中国发明专利, 专利号 CN 108239458 B, 授权公告日 2018-09-01.
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