发明人韩伟,何建平,陈志强. "Method for the Synthesis of 9-Ethylcarbazole-3-carboxaldehydeDiphenylhydrazone" [P]. 中国发明专利, 专利号 CN 111354438 A, 授权公告日 2015-05-24.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2017, 1238, (2), 7128-7134.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2018, 1643, (8), 2482-2497.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 9-Ethylcarbazole-3-carboxaldehydeDiphenylhydrazone Using HRMS and NMR". Anal. Methods, 2011, 1390, (3), 6313-6334.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2015, 1445, (12), 535-546.