Upadacitinib Trifluoroacetamide Impurity (CAS 2768445-19-6) é um componente relacionado identificado durante a síntese e purificação do upadacitinibe. A presença desta impureza trifluoroacetamida pode afetar a pureza e o perfil de segurança do material de referência, exigindo caracterização estrutural por HPLC, LC-MS e RMN e quantificação robusta em método validado. Recomenda-se definir limites de especificação, investigar sua origem por rota sintética e otimizar etapas de purificação para reduzir níveis residuais. Fornecemos dados analíticos e padrão de referência adequado para suporte a desenvolvimento de especificações, estudos de estabilidade e controle de qualidade conforme boas práticas regulatórias.
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