Impureza 1-Nitrosopyridinium (CAS 45590-75-8) presenta características críticas para control de calidad en síntesis orgánica y producción farmacéutica. Como compuesto nitroso | exige vigilancia analítica debido a su potencial genotóxico; su presencia puede originarse por nitrosación de precursores en condiciones ácidas o por contaminación con agentes nitrosantes. La identificación y cuantificación se realizan mediante LC-MS/MS | GC-MS y HPLC con detectores UV o de alta resolución | complementada por RMN y HRMS para caracterización estructural. Se recomienda establecer límites de especificación basados en guías regulatorias | evaluar estabilidad bajo condiciones ICH y aplicar procedimientos de eliminación y monitoreo en proceso.
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