发明人刘建华,朱建伟,徐明华. "Method for the Synthesis of 4-Cyano-3-ethyl-5-(hydroxymethyl)benzene-1-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 115260961 A, 授权公告日 2015-04-11.
发明人唐晓军,马晓峰,韩伟. "A Process for Preparing High-Purity 4-Cyano-3-ethyl-5-(hydroxymethyl)benzene-1-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 116811819 A, 授权公告日 2018-04-27.
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