Levodopa EP Impurity A (CAS 27244-64-0) | conocida también como Levodopa Related Compound A o 2-hydroxy Levodopa | es una impureza relacionada estructuralmente con levodopa que requiere monitorización en calidad farmacéutica. Se genera predominantemente por oxidación y modificaciones hidroxilantes durante síntesis | purificación o almacenamiento | y puede detectarse por HPLC acoplada a espectrometría de masas y confirmarse por RMN. Su cuantificación y límites en especificaciones son críticos para cumplir monografías EP. Los controles incluyen optimización de condiciones de reacción | uso de antioxidantes | validación de métodos analíticos y estudios de degradación forzados para caracterizar su perfil y establecer criterios de aceptación.
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