发明人何建平,张德明,钱学锋. "Method for the Synthesis of Methyl 4-amino-3-hydroxybenzoate hydrochloride" [P]. 中国发明专利, 专利号 CN 112057929 A, 授权公告日 2016-08-13.
发明人朱建伟,冯建国,高志强. "A Process for Preparing High-Purity Methyl 4-amino-3-hydroxybenzoate hydrochloride" [P]. 中国发明专利, 专利号 CN 108292573 A, 授权公告日 2024-03-16.
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