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发明人郑宇鹏,沈红梅,陈志强. "A Process for Preparing High-Purity 3-Methyl-1-propyl-1H-pyrazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 111074441 B, 授权公告日 2017-01-02.
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