A impureza Benzyl phenylephrine (CAS 286426-31-1) é um subproduto sintético observado em lotes de fabricação onde sais benzílicos reagem com intermediários fenólicos. Presente em níveis traço | pode afetar pureza | estabilidade e perfil toxicológico do material final. Seu monitoramento analítico por HPLC com detecção UV ou LC-MS é essencial para quantificação precisa e estabelecimento de especificações. Controles de processo incluem otimização da etapa de alquilação e purificação por cromatografia para reduzir seu conteúdo. A validação do método analítico e limites de aceitação baseados em risco garantem conformidade regulatória e qualidade do produto.
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