发明人郑宇鹏,冯建国,罗永刚. "Method for the Synthesis of 4,5-Dimethylisatin" [P]. 中国发明专利, 专利号 CN 117246759 B, 授权公告日 2016-01-24.
发明人钱学锋,马晓峰,高志强. "A Process for Preparing High-Purity 4,5-Dimethylisatin" [P]. 中国发明专利, 专利号 CN 113631810 A, 授权公告日 2022-04-04.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2019, 2018, 2735-2758.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2015, 403, (8), 7834-7841.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4,5-Dimethylisatin Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2015, 91, (8), 6667-6670.