发明人王建平,沈红梅,徐明华. "Method for the Synthesis of 4-Chloro-3-(methylsulfonyl)benzoic acid" [P]. 中国发明专利, 专利号 CN 112277763 B, 授权公告日 2016-06-28.
Johnson M A, Anderson J P, Schröder R. "A Process for Preparing High-Purity 4-Chloro-3-(methylsulfonyl)benzoic acid" [P]. US Patent, US 11218717 B2, 2021-03-17.
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