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发明人王建平,韩伟,罗永刚. "A Process for Preparing High-Purity 6,8-Dichloro-2-(2-chlorophenyl)-4H-benzo[d][1,3]oxazin-4-one" [P]. 中国发明专利, 专利号 CN 108327699 B, 授权公告日 2021-07-08.
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