发明人刘建华,何建平,徐明华. "Method for the Synthesis of 4-Amino-2-ethylbenzoic acid" [P]. 中国发明专利, 专利号 CN 114872929 B, 授权公告日 2015-10-11.
发明人钱学锋,罗永刚,唐晓军. "A Process for Preparing High-Purity 4-Amino-2-ethylbenzoic acid" [P]. 中国发明专利, 专利号 CN 117708338 B, 授权公告日 2018-08-27.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2016, 792, (10), 1062-1067.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2017, 217, 4466-4480.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-2-ethylbenzoic acid Using HRMS and NMR". J. Nat. Prod., 2020, 1461, (8), 5627-5634.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2019, 390, (9), 2288-2312.