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发明人黄志刚,林芳,王建平. "A Process for Preparing High-Purity 3-(2,2-Dimethoxyethyl)-2-sulfanylideneimidazolidin-4-one" [P]. 中国发明专利, 专利号 CN 109804931 B, 授权公告日 2020-10-01.
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