发明人徐明华,孙丽萍,郑宇鹏. "Method for the Synthesis of 3-(3,4-Dichlorophenyl)picolinic acid" [P]. 中国发明专利, 专利号 CN 111420566 B, 授权公告日 2018-09-22.
发明人何建平,朱建伟,沈红梅. "A Process for Preparing High-Purity 3-(3,4-Dichlorophenyl)picolinic acid" [P]. 中国发明专利, 专利号 CN 113926578 B, 授权公告日 2019-11-23.
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