发明人韩伟,刘建华,杨光. "Method for the Synthesis of 5-Chloro-2-ethyl-4-(ethylthio)pyridazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 115814602 B, 授权公告日 2022-03-08.
发明人马晓峰,刘建华,周伟. "A Process for Preparing High-Purity 5-Chloro-2-ethyl-4-(ethylthio)pyridazin-3(2H)-one" [P]. 中国发明专利, 专利号 CN 117924194 A, 授权公告日 2021-08-10.
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