Sørensen M, Rossi M, Schröder R. "一种5,5’-亚甲基双(2-羟基-3-甲基苯甲酸)的合成方法" [P]. European Patent, EP 3484039 A1, 2017-04-25.
发明人唐晓军,罗永刚,朱建伟. "Method for the Synthesis of 5,5’-Methylenebis(2-hydroxy-3-methylbenzoic Acid)" [P]. 中国发明专利, 专利号 CN 108066791 A, 授权公告日 2015-04-27.
发明人郭海燕,王建平,林芳. "A Process for Preparing High-Purity 5,5’-Methylenebis(2-hydroxy-3-methylbenzoic Acid)" [P]. 中国发明专利, 专利号 CN 109661046 A, 授权公告日 2017-07-02.
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