发明人李文辉,杨光,赵玉洁. "Method for the Synthesis of Bis(4-(4-methoxyphenyl)piperazine-1-carboximidamide), sulfuric acid" [P]. 中国发明专利, 专利号 CN 109726000 A, 授权公告日 2018-04-03.
发明人林芳,何建平,朱建伟. "A Process for Preparing High-Purity Bis(4-(4-methoxyphenyl)piperazine-1-carboximidamide), sulfuric acid" [P]. 中国发明专利, 专利号 CN 109587755 B, 授权公告日 2022-01-22.
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