2-(dimethylamino)ethyl (2-(methyl(nitroso)amino)ethyl) succinate es una impureza nitrosada relevante en procesos sintéticos que incorpora un grupo N-nitroso susceptible de generar riesgos genotóxicos y afectar la estabilidad del ingrediente activo. Se forma por nitrosación de aminas secundarias en presencia de nitritos bajo condiciones ácidas o durante purificación inadecuada. Su control exige métodos analíticos sensibles como LC-MS/MS y GC-MS con límites de cuantificación sub-ppm, validación específica y muestreo dirigido. Estrategias de mitigación incluyen control de pH, eliminación de nitritos, uso de agentes captadores y condiciones de almacenamiento anóxicas. La monitorización continua en control de calidad es esencial para cumplimiento regulatorio.
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