(1-Methyl-2-phenyl-ethyl)-carbamic acid isobutyl ester (CAS 27822-62-4) es una impureza orgánica relevante en procesos de síntesis de carbamatos y productos farmacéuticos relacionados. Químicamente es un carbamato secundario con un núcleo fenilpropílico que puede originarse por reacciones secundarias | transcarbamilación o incompleta esterificación. Su identificación y cuantificación requieren técnicas analíticas sensibles como HPLC con detección UV o MS | corroboradas por RMN para confirmar la estructura. La presencia de esta impureza puede afectar la pureza del ingrediente activo | perfiles de estabilidad y cumplimiento regulatorio | por ello se recomiendan controles de proceso | límites de especificación y purificación mediante cromatografía para minimizar su nivel.
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![1-[4-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]phenyl]-2-methoxyethanone Hydrochloride](https://veeprho.com/wp-content/uploads/2022/07/1-5B4-5B2-Hydroxy-3-5B1-methylethylamino5Dpropoxy5Dphenyl5D-2-methoxyethanone-Hydrochloride.png "1-[4-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]phenyl]-2-methoxyethanone Hydrochloride")