Sub Group: Heterocyclic Compounds Catalog Number: 7963 Formula: C8H11ClN2O CAS Number: 83857-96-9 Molecular Weight: 186.64 Synonyms: 2-Butyl-5-chloro-1H-imidazole-4-carboxaldehyde2-Butyl-4-chloro -5-formylimidazole2-Butyl-4-chloroimidazole-5-carboxaldehyd