Mirtazapine N-oxide is a metabolite of mirtazapine.1It is formed from mirtazapine by the cytochrome P450 (CYP) isoforms CYP1A2 and CYP3A4 in human liver microsomes.
Afatinib N-Oxide, an impurity resulting from the oxidative degradation of Afatinib, is an irreversible inhibitor of the EGFR (Epidermal Growth Factor Receptor) family.
Palonosetron N-oxide is a metabolite of the serotonin (5-HT) receptor subtype 5-HT3antagonist palonosetron .1It is also a potential impurity in palonosetron preparations.2Palonosetron N-oxide is a degradation product formed by exposure to oxidative stress. 1.Stoltz, R.A., Cyong, J.-C., Shah, A., et al.Pharmacokinetic and safety evaluation of palonosetron, a 5-hydroxytryptamine-3 receptor antagonist, in U.S. and Japanese healthy subjectsJ. Clin. Pharmacol.44(5)520-531(2004) 2.Vishnu Murthy, M., Srinivas, K., Kumar, R., et al.Development and validation of a stability-indicating LC method for determining palonosetron hydrochloride, its related compounds and degradation products using naphthalethyl stationary phaseJ. Pharm. Biomed. Anal.56(2)429-435(2011)
Rizatriptan N-oxide is a potential impurity found in commercial preparations of rizatriptan.1It is a degradation product formed under oxidative conditions.
Ranitidine-N-oxide is a metabolite of Ranitidine. Ranitidine is a antagonist of histamine H2-receptor, it inhibits the normal and meal-stimulated secretion of stomach acid. Ranitidine is a medication decreaseing stomach acid production.
Piribedil N-oxide, a metabolite of the dopamine receptor agonist piribedil, represents a chemical compound involved in the metabolic processing of its parent compound, piribedil.