发明人刘建华,李文辉,赵玉洁. "Method for the Synthesis of 5-Ethyl-1H-pyrazole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 116041038 B, 授权公告日 2022-06-14.
发明人杨光,孙丽萍,郑宇鹏. "A Process for Preparing High-Purity 5-Ethyl-1H-pyrazole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 116213127 A, 授权公告日 2017-07-07.
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