发明人李文辉,陈志强,郭海燕. "Method for the Synthesis of 4-Bromo-2-cyano-5-hydroxybenzoic acid" [P]. 中国发明专利, 专利号 CN 108682245 A, 授权公告日 2015-06-08.
发明人张德明,何建平,刘建华. "A Process for Preparing High-Purity 4-Bromo-2-cyano-5-hydroxybenzoic acid" [P]. 中国发明专利, 专利号 CN 109683321 B, 授权公告日 2024-01-02.
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