8-(2-Carbamoylphenoxy)octanoic Acid (CAS 338994-19-7) es una impureza orgánica que puede aparecer en procesos de síntesis de ésteres y ácidos fenólicos. Su presencia afecta el perfil de calidad por generación de subproductos polares que alteran la impureza total y la estabilidad del lote. Se detecta y cuantifica mediante HPLC con detección UV, cromatografía líquida acoplada a espectrometría de masas y RMN para confirmación estructural. Se recomiendan límites especificados basados en estudios de riesgo, controles de proceso que incluyen optimización de pH y tiempos de reacción, y evaluaciones de degradación forzada para definir su comportamiento termolábil y su impacto en la pureza final.
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