发明人黄志刚,周伟,钱学锋. "一种3,3-dimethyl-1-(2-nitrophenyl)urea的合成方法" [P]. 中国发明专利, 专利号 CN 115166662 A, 授权公告日 2022-09-01.
发明人林芳,冯建国,韩伟. "Method for the Synthesis of 3,3-dimethyl-1-(2-nitrophenyl)urea" [P]. 中国发明专利, 专利号 CN 113544203 A, 授权公告日 2020-06-28.
发明人冯建国,赵玉洁,马晓峰. "A Process for Preparing High-Purity 3,3-dimethyl-1-(2-nitrophenyl)urea" [P]. 中国发明专利, 专利号 CN 112036246 B, 授权公告日 2025-01-09.
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