El compuesto (4-Clorofenil)(4-Isopropoxifenil)metanona (CAS 154356-96-4) se presenta como una impureza lipofílica en síntesis de derivados aromáticos. Característicamente aparece por reacciones secundarias durante acilación o acoplamiento | mostrando mayor retención en HPLC en fase reversa y señal UV fuerte a 254 nm | lo que facilita su detección por HPLC-UV y LC-MS. Su perfil espectral por RMN 1H/13C confirma el patrón aromático y el grupo isopropoxi. Suele requerir eliminación mediante cromatografía en columna | recristalización o HPLC preparativa; controlar esta impureza es clave por su impacto en rendimiento | estabilidad y cumplimiento regulatorio.
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