发明人孙丽萍,王建平,高志强. "Method for the Synthesis of 3-[1,1-Bis(hexyloxy)ethyl]-1-(3-sulfopropyl)-pyridinium Inner Salt" [P]. 中国发明专利, 专利号 CN 111471873 A, 授权公告日 2023-02-23.
发明人刘建华,沈红梅,郭海燕. "A Process for Preparing High-Purity 3-[1,1-Bis(hexyloxy)ethyl]-1-(3-sulfopropyl)-pyridinium Inner Salt" [P]. 中国发明专利, 专利号 CN 114200989 B, 授权公告日 2025-07-18.
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