发明人赵玉洁,钱学锋,冯建国. "Method for the Synthesis of 6-Bromo-2-chloro-3-ethoxybenzoic acid" [P]. 中国发明专利, 专利号 CN 116538259 B, 授权公告日 2023-03-23.
发明人钱学锋,周伟,刘建华. "A Process for Preparing High-Purity 6-Bromo-2-chloro-3-ethoxybenzoic acid" [P]. 中国发明专利, 专利号 CN 111923168 A, 授权公告日 2020-06-10.
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