发明人赵玉洁,何建平,罗永刚. "Method for the Synthesis of Benzydamine EP Impurity B HCl" [P]. 中国发明专利, 专利号 CN 112824148 A, 授权公告日 2024-07-07.
发明人冯建国,沈红梅,何建平. "A Process for Preparing High-Purity Benzydamine EP Impurity B HCl" [P]. 中国发明专利, 专利号 CN 111827042 A, 授权公告日 2016-04-08.
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