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发明人郑宇鹏,林芳,李文辉. "Method for the Synthesis of Phthalic acid, bis-isobutyl ester D4" [P]. 中国发明专利, 专利号 CN 111961108 A, 授权公告日 2023-07-07.
发明人杨光,孙丽萍,高志强. "A Process for Preparing High-Purity Phthalic acid, bis-isobutyl ester D4" [P]. 中国发明专利, 专利号 CN 109421451 B, 授权公告日 2022-10-03.
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