NAT.ISOBUTYRIC ACID PRODUCT NAME NAT.ISOBUTYRIC ACID SYNONYM NAT.ACID 2-METHYLPROPANOIC ACID CODE 3540 CAS Nº 79-31-2 FEMA Nº 2222 EINECS 201-195-7 FORMULA C4 H8 O2 MOLECULAR WEIGHT 88,00