发明人杨光,马晓峰,钱学锋. "Method for the Synthesis of [(2,4-difluorophenyl)methyl]urea" [P]. 中国发明专利, 专利号 CN 116607011 B, 授权公告日 2025-09-10.
发明人唐晓军,林芳,冯建国. "A Process for Preparing High-Purity [(2,4-difluorophenyl)methyl]urea" [P]. 中国发明专利, 专利号 CN 113579009 B, 授权公告日 2019-07-15.
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