Klinger H, Park J H, Davis P L. "一种DL-苹果酸的合成方法" [P]. US Patent, US 11242580 B2, 2015-07-06.
发明人黄志刚,徐明华,杨光. "Method for the Synthesis of DL-Malic Acid" [P]. 中国发明专利, 专利号 CN 109759495 B, 授权公告日 2016-05-12.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of DL-苹果酸 in Pharmaceutical Formulations". Molecules, 2025, 283, (10), 3996-4013.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of DL-苹果酸 as an Impurity". Chromatographia, 2020, 1755, (1), 6438-6453.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of DL-Malic Acid Using HRMS and NMR". Sci. Total Environ., 2021, 457, 2893-2916.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate DL-苹果酸 Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2013, 166, 1438-1447.