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参考文献 Literature
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Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of Phenothiazine Impurity 5 Using HRMS and NMR". J. Nat. Prod., 2020, 2224, 4689-4711.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Phenothiazine Impurity5 Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2023, 1715, 1053-1064.