发明人何建平,陈志强,李文辉. "Method for the Synthesis of 2,4-Bis[4-(N,N-diisobutylamino)-2,6-dihydroxyphenyl]squaraine" [P]. 中国发明专利, 专利号 CN 113611856 A, 授权公告日 2024-05-19.
发明人冯建国,王建平,韩伟. "A Process for Preparing High-Purity 2,4-Bis[4-(N,N-diisobutylamino)-2,6-dihydroxyphenyl]squaraine" [P]. 中国发明专利, 专利号 CN 113661196 A, 授权公告日 2023-11-06.
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