发明人李文辉,孙丽萍,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111657285 A, 授权公告日 2023-08-09.
发明人徐明华,刘建华,何建平. "Method for the Synthesis of 5-Methyl-4-nitro-2,3-dihydro-1h-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 117604894 B, 授权公告日 2022-12-18.
发明人王建平,孙丽萍,罗永刚. "A Process for Preparing High-Purity 5-Methyl-4-nitro-2,3-dihydro-1h-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 110581697 A, 授权公告日 2021-06-19.
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