Anastrozole EP Impurity E (CAS 120511-88-8) é uma impureza orgânica observada no perfil de anastrozol | relevante para controle de qualidade farmacêutico. Geralmente originada por vias laterais de síntese ou por degradação durante armazenamento | sua presença é monitorada por técnicas analíticas sensíveis como HPLC com detecção UV | LC-MS e RMN para confirmação estrutural. A quantificação precisa | limites de especificação e validação de método são essenciais para avaliar impacto na pureza do lote e na conformidade regulatória. Estudos de estabilidade | otimização do processo sintético e procedimentos de purificação reduzem sua formação | enquanto relatórios de identificação e justificativa de limites sustentam submissões a autoridades.
Referências
Gangadhara, Sharath, and Gianfilippo Bertelli. “Long-Term Efficacy and Safety of Anastrozole for Adjuvant Treatment of Early Breast Cancer in Postmenopausal Women.†Therapeutics and Clinical Risk Management, vol. 5, 2009, pp. 291–300, www.ncbi.nlm.nih.gov/pmc/articles/PMC2690973/.
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