发明人张德明,韩伟,罗永刚. "Method for the Synthesis of 3,5-Dibromo-2-ethyl-6-methylpyrazolo[1,2-a]pyrazole-1,7-dione" [P]. 中国发明专利, 专利号 CN 117065251 B, 授权公告日 2020-07-14.
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