Quinine EP Impurity A (Free Base) | CAS 56-54-2 | é uma impureza identificada como quinidina ((8R | 9S)-quinidina) | também referida como 6′-metoxi-cinchonan-9-ol e alpha-(6-metoxi-4-quinolil)-5-vinil-2-quinuclidinemetanol; sua presença requer controle rigoroso no processo produtivo pela estereoquímica específica e pelo impacto potencial na pureza do princípio ativo. O perfil analítico inclui HPLC com detector UV para quantificação | LC-MS para confirmação de massa e NMR para verificação estrutural | com limites de especificação definidos conforme monografias e boas práticas analíticas. Fornecemos material de referência e dados analíticos para suporte à identificação | quantificação e investigação de contaminação.
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