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发明人黄志刚,唐晓军,郑宇鹏. "Method for the Synthesis of 4,4′-Carbonylbis[(2-ethoxycarbonyl)benzoic acid], 1,3-phenylenediamine salt" [P]. 中国发明专利, 专利号 CN 113892136 B, 授权公告日 2024-11-13.
发明人刘建华,何建平,林芳. "A Process for Preparing High-Purity 4,4′-Carbonylbis[(2-ethoxycarbonyl)benzoic acid], 1,3-phenylenediamine salt" [P]. 中国发明专利, 专利号 CN 115300577 A, 授权公告日 2022-02-03.
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