Levofloxacin 9-piperazino Isomer (CAS 178912-62-4) | também designado Levofloxacin EP Impurity I | é uma impureza estrutural relevante no perfil de qualidade do levofloxacino. Originada por isomerização ou reações secundárias durante síntese e armazenamento | requer monitoramento robusto. A identificação é realizada por HPLC com detecção UV e confirmação por LC-MS e RMN para atribuição de massa e estruturas. Estudos de degradação forçada avaliam sua formação sob condições ácidas | básicas e oxidativas. O controle segue limites de impurezas genotóxicas conforme ICH e monografia EP | com estratégias de purificação | otimização de processo e validação analítica para garantir conformidade e segurança do medicamento.
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