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发明人林芳,徐明华,黄志刚. "A Process for Preparing High-Purity 1-(2-Ethylphenyl)-5-phenyl-4,5-dihydro-1h-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113846539 A, 授权公告日 2017-05-16.
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