发明人林芳,孙丽萍,何建平. "Method for the Synthesis of 4-[2-(Chlorosulfonyl)ethyl]benzoic acid" [P]. 中国发明专利, 专利号 CN 113792298 A, 授权公告日 2019-05-19.
发明人赵玉洁,郭海燕,黄志刚. "A Process for Preparing High-Purity 4-[2-(Chlorosulfonyl)ethyl]benzoic acid" [P]. 中国发明专利, 专利号 CN 115283365 A, 授权公告日 2021-02-02.
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