发明人陈志强,李文辉,马晓峰. "Method for the Synthesis of 3-(Difluoromethyl)-5-nitro-4-(trifluoromethyl)picolinonitrile" [P]. 中国发明专利, 专利号 CN 116894437 B, 授权公告日 2020-06-04.
发明人韩伟,赵玉洁,王建平. "A Process for Preparing High-Purity 3-(Difluoromethyl)-5-nitro-4-(trifluoromethyl)picolinonitrile" [P]. 中国发明专利, 专利号 CN 116092042 A, 授权公告日 2021-12-06.
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