发明人林芳,杨光,刘建华. "Method for the Synthesis of 3-Bromo-4-cyano-5-hydroxybenzoic acid" [P]. 中国发明专利, 专利号 CN 116802253 B, 授权公告日 2018-07-14.
发明人何建平,冯建国,周伟. "A Process for Preparing High-Purity 3-Bromo-4-cyano-5-hydroxybenzoic acid" [P]. 中国发明专利, 专利号 CN 111991005 A, 授权公告日 2023-04-08.
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