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发明人张德明,罗永刚,郭海燕. "A Process for Preparing High-Purity [N-(2-Maleimidoethyl]ethylenediamine-N,N,N’,N’-tetraacetic Acid, Monoamide, Technical Grade" [P]. 中国发明专利, 专利号 CN 112677804 B, 授权公告日 2022-08-16.
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