发明人林芳,沈红梅,李文辉. "Method for the Synthesis of 1,3,3-Trimethyl-2-(2-(3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)cyclohex-1-en-1-yl)vinyl)-3H-indol-1-ium iodide" [P]. 中国发明专利, 专利号 CN 113618060 B, 授权公告日 2025-06-27.
发明人黄志刚,唐晓军,徐明华. "A Process for Preparing High-Purity 1,3,3-Trimethyl-2-(2-(3-(2-(1,3,3-trimethylindolin-2-ylidene)ethylidene)cyclohex-1-en-1-yl)vinyl)-3H-indol-1-ium iodide" [P]. 中国发明专利, 专利号 CN 112445442 A, 授权公告日 2021-09-20.
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