发明人罗永刚,杨光,张德明. "Method for the Synthesis of 4-Chloro-5-((2,4-dichlorobenzyl)oxy)-2-ethylpyridazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 108420972 A, 授权公告日 2020-04-16.
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