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发明人徐明华,郭海燕,钱学锋. "Method for the Synthesis of 3-Imino-4-methyl-3,4-dihydropyrazin-2-amine" [P]. 中国发明专利, 专利号 CN 112387538 B, 授权公告日 2021-06-08.
发明人唐晓军,冯建国,周伟. "A Process for Preparing High-Purity 3-Imino-4-methyl-3,4-dihydropyrazin-2-amine" [P]. 中国发明专利, 专利号 CN 109515100 B, 授权公告日 2024-03-01.
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