Impureza Cefaclor EP Impurity B (CAS 53994-69-7) é o ácido 7-amino-3-cloro-cefanosporânico | subproduto relevante na síntese de cefaclor que requer monitoramento rigoroso. A presença de grupos amino | cloro e ácido carboxílico altera polaridade e ionização dependente do pH | influenciando solubilidade e comportamento cromatográfico. Métodos analíticos validados | incluindo HPLC com detecção UV | LC-MS e espectrometria de massas | são empregados para identificação | quantificação e estudo de impurezas relacionadas. O controle de processo e os dados de estabilidade são essenciais para estabelecer limites conforme monografia EP | detectar variações de lote e garantir conformidade regulatória e qualidade farmacêutica.
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