Bromfenac Impurity 4 é uma impureza relacionada identificada durante o desenvolvimento e produção de bromfenac. Caracterização estrutural por espectrometria de massa | RMN e cromatografia líquida de alta eficiência permitiu determinar massa molar | fragmentação e tempo de retenção. Avaliação de toxicidade e limites segue as diretrizes ICH Q3A | com estabelecimento de especificação e limites de aceitação baseados em estudos de risco. Métodos analíticos validados para quantificação incluem HPLC com detecção UV e LC-MS para rastreio em rotina. Estratégias de controle abrangem otimização de síntese | purificação e monitoramento de estabilidade para garantir conformidade do produto final.
Referências
Sheiner, Lewis B. “A New Approach to the Analysis of Analgesic Drug Trials, Illustrated with Bromfenac Data.” Clinical Pharmacology & Therapeutics, vol. 56, no. 3, Sept. 1994, pp. 309–22, https://doi.org/10.1038/clpt.1994.142.
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