NAT.ISOAMYL ISOBUTYRATE PRODUCT NAME NAT.ISOAMYL ISOBUTYRATE SYNONYM NAT.3-METHYLBUTYL ISOBUTYRATE CODE 3528 CAS Nº 2050-01-3 FEMA Nº 3507 EINECS 218-078-1 FORMULA C9 H18 O2 MOLECULAR WEIGHT 158,20