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发明人韩伟,郭海燕,朱建伟. "A Process for Preparing High-Purity 2-(2,4-Dichlorophenyl)-5-(pyridin-3-yl)-2,4-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 116894710 A, 授权公告日 2023-11-05.
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