发明人孙丽萍,刘建华,罗永刚. "Method for the Synthesis of 5-Methyl-2-(3-methyl-4-nitrophenyl)-1H-pyrazol-3(2H)-one" [P]. 中国发明专利, 专利号 CN 112412644 B, 授权公告日 2017-11-04.
发明人徐明华,李文辉,杨光. "A Process for Preparing High-Purity 5-Methyl-2-(3-methyl-4-nitrophenyl)-1H-pyrazol-3(2H)-one" [P]. 中国发明专利, 专利号 CN 108107236 B, 授权公告日 2022-07-28.
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