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发明人孙丽萍,刘建华,陈志强. "A Process for Preparing High-Purity 1-Benzyl-5-ethoxy-1H-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111847032 A, 授权公告日 2017-09-09.
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