发明人何建平,马晓峰,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115956094 A, 授权公告日 2018-05-09.
发明人张德明,胡光,李文辉. "Method for the Synthesis of 2-Chloro-N'-(2,5-dichlorophenyl)pyridine-3-carbohydrazide" [P]. 中国发明专利, 专利号 CN 114472734 A, 授权公告日 2018-10-09.
发明人钱学锋,赵玉洁,朱建伟. "A Process for Preparing High-Purity 2-Chloro-N'-(2,5-dichlorophenyl)pyridine-3-carbohydrazide" [P]. 中国发明专利, 专利号 CN 115217844 A, 授权公告日 2019-06-26.
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