发明人杨光,王建平,罗永刚. "Method for the Synthesis of 5-(Difluoromethyl)-4,6-difluoropicolinic acid" [P]. 中国发明专利, 专利号 CN 110433062 A, 授权公告日 2022-04-01.
发明人罗永刚,刘建华,徐明华. "A Process for Preparing High-Purity 5-(Difluoromethyl)-4,6-difluoropicolinic acid" [P]. 中国发明专利, 专利号 CN 110369753 B, 授权公告日 2017-10-21.
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