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发明人陈志强,徐明华,罗永刚. "A Process for Preparing High-Purity 3-(Hydroxymethyl)-1,6,6-trimethyl-2,5-piperazinedione" [P]. 中国发明专利, 专利号 CN 116896095 B, 授权公告日 2023-03-22.
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