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发明人唐晓军,冯建国,林芳. "A Process for Preparing High-Purity 6-Methyl-5h,6h,7h,8h-pyrazino[2,3-d]pyridazine-5,8-dione" [P]. 中国发明专利, 专利号 CN 108398714 A, 授权公告日 2021-02-10.
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