Epinephrine Impurity 25 (CAS 85927-06-6) é um derivado sulfatado da epinefrina conhecido como Epinephrine 4-O-sulfate | Epinephrine Sulfate ou Adrenaline Sulfate. Esta impureza estruturalmente definida apresenta o grupo sulfato ligado ao anel fenólico | afetando solubilidade e comportamento cromatográfico. Importante para controle de qualidade | seu perfil analítico é caracterizado por métodos HPLC | LC-MS e NMR para quantificação e confirmação estrutural. A presença deste composto pode indicar vias de sulfatação durante síntese ou degradação do ativo e exige monitoramento conforme diretrizes ICH para limites de impurezas e avaliação de risco toxicológico.
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