发明人高志强,罗永刚,刘建华. "一种N-[4-(aminomethyl)phenyl]urea的合成方法" [P]. 中国发明专利, 专利号 CN 110875422 A, 授权公告日 2019-01-25.
发明人郑宇鹏,刘建华,李文辉. "Method for the Synthesis of N-[4-(aminomethyl)phenyl]urea" [P]. 中国发明专利, 专利号 CN 110784810 B, 授权公告日 2022-05-24.
发明人韩伟,郭海燕,唐晓军. "A Process for Preparing High-Purity N-[4-(aminomethyl)phenyl]urea" [P]. 中国发明专利, 专利号 CN 111486480 B, 授权公告日 2024-03-16.
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