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发明人郑宇鹏,唐晓军,王建平. "A Process for Preparing High-Purity (E)-4-oxo-4-(2-phenylhydrazinyl)but-2-enoic acid" [P]. 中国发明专利, 专利号 CN 112472366 B, 授权公告日 2024-05-05.
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