发明人唐晓军,张德明,冯建国. "Method for the Synthesis of 4-Aminothiophene-2-carboxylic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 114531393 B, 授权公告日 2019-10-20.
发明人马晓峰,黄志刚,沈红梅. "A Process for Preparing High-Purity 4-Aminothiophene-2-carboxylic acid hydrochloride" [P]. 中国发明专利, 专利号 CN 110154189 A, 授权公告日 2020-07-09.
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