N-Nitroso of Leve Inter (LCTRC-3) Levetiracetam | também referido como N-Nitroso-Levetiracetam Related Compound A | é uma impureza nitrosada relevante em controles analíticos de Levetiracetam. Apresenta risco por potencial genotoxicidade | requerendo triagem e quantificação sensível por LC-MS/MS ou GC-MS após derivatização. A caracterização inclui perfil de massa | tempo de retenção e comportamento em condições de estresse oxidativo e nitrosante. A monitorização garante conformidade com limites regulatórios | orientando investigação de vias de formação e otimização de síntese e purificação para redução de níveis. Métodos validados permitem rastreio em matérias primas e lotes de produção.
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