发明人刘建华,孙丽萍,沈红梅. "Method for the Synthesis of 4-(4-Methoxyphenyl)piperazine-1-carboximidamide sulfate" [P]. 中国发明专利, 专利号 CN 109118358 A, 授权公告日 2023-04-08.
发明人朱建伟,韩伟,高志强. "A Process for Preparing High-Purity 4-(4-Methoxyphenyl)piperazine-1-carboximidamide sulfate" [P]. 中国发明专利, 专利号 CN 108366089 A, 授权公告日 2017-09-23.
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