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发明人黄志刚,刘建华,沈红梅. "A Process for Preparing High-Purity 6-Chloro-3-ethyl-[1,2,4]triazolo[4,3-b]pyridazine" [P]. 中国发明专利, 专利号 CN 109577311 A, 授权公告日 2020-03-24.
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