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发明人张德明,林芳,唐晓军. "A Process for Preparing High-Purity 3-((2,2-Dimethylcyclopropyl)amino)pyridazine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109600221 B, 授权公告日 2016-07-24.
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