发明人韩伟,罗永刚,何建平. "Method for the Synthesis of Butylphthalide Impurity 45 Potassium" [P]. 中国发明专利, 专利号 CN 113550772 A, 授权公告日 2019-01-03.
发明人唐晓军,高志强,罗永刚. "A Process for Preparing High-Purity Butylphthalide Impurity 45 Potassium" [P]. 中国发明专利, 专利号 CN 109050428 B, 授权公告日 2018-05-09.
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