发明人孙丽萍,马晓峰,胡光. "Method for the Synthesis of 5-Bromo-2-ethylpyridazin-3(2h)-one" [P]. 中国发明专利, 专利号 CN 110155412 A, 授权公告日 2020-07-26.
发明人朱建伟,陈志强,郑宇鹏. "A Process for Preparing High-Purity 5-Bromo-2-ethylpyridazin-3(2h)-one" [P]. 中国发明专利, 专利号 CN 112220314 A, 授权公告日 2022-11-10.
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