发明人赵玉洁,郑宇鹏,刘建华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116210084 A, 授权公告日 2018-07-10.
发明人李文辉,郑宇鹏,孙丽萍. "Method for the Synthesis of 3,4-Dimethyl-2-nitrobenzoic acid" [P]. 中国发明专利, 专利号 CN 108500951 A, 授权公告日 2017-10-24.
发明人朱建伟,林芳,钱学锋. "A Process for Preparing High-Purity 3,4-Dimethyl-2-nitrobenzoic acid" [P]. 中国发明专利, 专利号 CN 112591450 B, 授权公告日 2022-08-02.
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