发明人赵玉洁,陈志强,杨光. "Method for the Synthesis of 4-Chloro-1-ethyl-1H-pyrazole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 112649964 B, 授权公告日 2016-11-03.
发明人胡光,冯建国,马晓峰. "A Process for Preparing High-Purity 4-Chloro-1-ethyl-1H-pyrazole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 115022803 B, 授权公告日 2019-03-21.
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