Impureza Rosuvastatina (3R | 5R)-Isômero (Base Livre) | CAS 1094100-06-7 | constitui um isômero configuracional da substância ativa que requer monitoramento analítico rigoroso durante síntese e purificação. Quimicamente definida como (3R | 5R | 6E)-7-[4-(4-fluorofenil)-6-(1-metiletil)-2-[metil(metilsulfonil)amino]pirimidin-5-il]-3 | 5-dihidroxihept-6-enoico | apresenta comportamento cromatográfico e espectral distinto que facilita detecção por HPLC-UV e quantificação por LC-MS/MS. Estudos de estabilidade e perfil de impurezas por RMN permitem discriminar epímeros e produtos de degradação. Controles de processo | limites especificados e padrões de referência são essenciais para garantir conformidade regulatória e minimizar impacto sobre pureza | potência e segurança do lote acabado.
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