Impureza (S)-4-chloro-3((trimethylsilyl)oxy) butanenitrile (CAS 727382-14-1) identificada como subproducto sililado frecuente en rutas sintéticas con nitrilos presenta propiedades fisicoquímicas que complican su separación: baja polaridad relativa | estabilidad frente a condiciones neutras y susceptibilidad a desililación bajo ácido o agua. Su perfil analítico requiere GC-MS y LC-MS para detección de trazas | complementados con RMN 1H/13C para confirmación estereoquímica. Impacta el rendimiento y la pureza del material final por formación de impurezas relacionadas y es susceptible a hidrólisis. Estrategias de control incluyen optimización de etapas de protección/desprotección | limpieza cromatográfica y monitoreo en proceso por análisis rápido.
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