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发明人张德明,林芳,唐晓军. "A Process for Preparing High-Purity 2-Fluoro-1,3-dimethylpyridin-1-ium 4-methylbenzenesulfonate" [P]. 中国发明专利, 专利号 CN 108732739 A, 授权公告日 2016-07-07.
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