7-Metilxantina (CAS 552-62-5) es una impureza relevante en procesos de síntesis y purificación de xantinas que puede afectar la calidad del producto final. Químicamente | presenta una estructura heterocíclica metilada que requiere monitoreo por técnicas analíticas robustas como HPLC con detección UV | LC-MS y NMR para identificación y cuantificación. Su presencia en niveles superiores a las especificaciones puede alterar parámetros farmacéuticos y farmacocinéticos y comprometer la estabilidad. Se recomienda establecer límites basados en evaluación toxicológica | validar métodos de análisis con límites de detección adecuados y aplicar controles de proceso para minimizar su formación y facilitar su remoción durante la purificación.
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