发明人郭海燕,韩伟,高志强. "Method for the Synthesis of 2,8-Bis(di-p-tolylamino)indeno[1,2-b]fluorene-6,12-dione" [P]. 中国发明专利, 专利号 CN 114168515 A, 授权公告日 2015-10-28.
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