发明人刘建华,孙丽萍,王建平. "Method for the Synthesis of N'-(3,4-Dimethoxybenzylidene)-2-hydroxybenzohydrazide" [P]. 中国发明专利, 专利号 CN 109283855 B, 授权公告日 2018-12-14.
发明人郭海燕,何建平,马晓峰. "A Process for Preparing High-Purity N'-(3,4-Dimethoxybenzylidene)-2-hydroxybenzohydrazide" [P]. 中国发明专利, 专利号 CN 110266830 B, 授权公告日 2016-08-10.
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