发明人韩伟,周伟,郭海燕. "Method for the Synthesis of 1-(4-Methyl-2,5-dioxoimidazolidin-4-yl)urea" [P]. 中国发明专利, 专利号 CN 109176396 A, 授权公告日 2017-07-18.
发明人刘建华,杨光,冯建国. "A Process for Preparing High-Purity 1-(4-Methyl-2,5-dioxoimidazolidin-4-yl)urea" [P]. 中国发明专利, 专利号 CN 113384623 B, 授权公告日 2020-08-11.
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