发明人周伟,钱学锋,韩伟. "Method for the Synthesis of Pyrazine-2-carboximidamide" [P]. 中国发明专利, 专利号 CN 113279871 B, 授权公告日 2019-12-21.
发明人张德明,何建平,冯建国. "A Process for Preparing High-Purity Pyrazine-2-carboximidamide" [P]. 中国发明专利, 专利号 CN 111605816 A, 授权公告日 2017-11-12.
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