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发明人郭海燕,郑宇鹏,李文辉. "A Process for Preparing High-Purity 5-Cyclopropyl-2-methyl-1H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 112065827 A, 授权公告日 2021-07-02.
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