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发明人杨光,刘建华,朱建伟. "A Process for Preparing High-Purity (2Z)-2-Amino-3-[(E)-[(thiophen-3-yl)methylidene]amino]but-2-enedinitrile" [P]. 中国发明专利, 专利号 CN 114424167 B, 授权公告日 2019-03-11.
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