发明人冯建国,杨光,李文辉. "Method for the Synthesis of Potassium 4-(2-oxobenzo[cd]indol-1(2H)-yl)butane-1-sulfonate" [P]. 中国发明专利, 专利号 CN 110076265 A, 授权公告日 2024-06-01.
发明人张德明,陈志强,何建平. "A Process for Preparing High-Purity Potassium 4-(2-oxobenzo[cd]indol-1(2H)-yl)butane-1-sulfonate" [P]. 中国发明专利, 专利号 CN 117970907 B, 授权公告日 2019-05-22.
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