Dehydro Epinastine; Dehydro Epinastine; 9,13b-Dehydro Epinastine;Dehydro Epinastine;9,13b-Dehydro Epinastine;Epinastine EP Impurity A Monomer;
Descripción
Epinastine EP Impurity A (CAS 706753-75-5) | conocida también como Dehydro Epinastine o 9 | 13b-Dehydro Epinastine | es una impureza de deshidrogenación que puede formarse durante la síntesis o el almacenamiento del monómero. Su caracterización exige análisis por HPLC con detección UV y confirmación estructural mediante LC-MS y RMN para asegurar identidad y pureza. La impureza presenta implicaciones críticas en especificaciones farmacéuticas | por lo que se requieren límites cuantitativos | ensayos de estabilidad y estrategias de control de proceso para minimizar su generación. Se recomienda disponer de estándar de referencia y procedimientos validados para su cuantificación y eliminación.
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