1500 ng/day is the U.S. FDA’s current Acceptable Intake (AI) limit for N-nitroso-bupropion (NDSRI). Refer to the FDA nitrosamine page for the latest guidance.
N-Nitroso Bupropion (CAS 2763780-10-3) é uma impureza do tipo nitrosamina que exige monitoramento rigoroso por seu potencial mutagênico e relevância regulatória. Sua formação está associada a reações de nitrosação de precursores amínicos na presença de nitritos e condições ácidas | e sua presença é crítica em matérias-primas | intermediários e formulações. A análise quantitativa recorre tipicamente a técnicas sensíveis como LC-MS/MS com extração por SPE ou GC-MS após derivatização | visando limites de quantificação em nível traço. Estratégias de controle incluem controle de impurezas de partida | condicionamento de processo | validação analítica e avaliação de risco conforme diretrizes ICH para nitrosaminas.
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