发明人韩伟,杨光,郑宇鹏. "Method for the Synthesis of Chlorhexidine EP Impurity M" [P]. 中国发明专利, 专利号 CN 112552295 B, 授权公告日 2024-01-22.
发明人赵玉洁,高志强,刘建华. "A Process for Preparing High-Purity Chlorhexidine EP Impurity M" [P]. 中国发明专利, 专利号 CN 112272104 B, 授权公告日 2015-08-04.
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