QNMR, D2O Exchange, 13C NMR, 13C APT, COSY NMR, NOESY NMR, 15N NMR, HSQC NMR, HMQC NMR, and HMBC NMR. These are available upon request and may be free or subject to additional charges.
Beschreibung
4-Nitrosomethylaminopyridin (NMAP), CAS 16219-99-1, ist eine pyridylische Nitrosamin-Verunreinigung mit der Summenformel C6H7N3O und einer Molekülmasse von 137,14 g/mol. Als N-nitrosiertes Aminopyridin gehört es zur chemischen Klasse der Nitrosamine und ist aufgrund seiner potentiell DNA-reaktiven Eigenschaften regulatorisch relevant. Die Bildung kann durch Nitrosierung aminierter Vorstufen während der Synthese oder bei der Lagerung unter nitrosierenden Bedingungen erfolgen. Die Bewertung erfolgt üblicherweise im Rahmen von ICH M7 für genotoxische Verunreinigungen. Für die Bestimmung bei Spurenkonzentrationen werden LC-MS/MS, GC-MS oder hochauflösende Massenspektrometrie eingesetzt.
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