4-03-00-01562 (Beilstein Handbook Reference) 539-88-8 AI3-00677 BRN 0507641 EINECS 208-728-2 ETHYL LEVULINATE Ethyl 3-acetylpropionate Ethyl 4-ketovalerate Ethyl 4-oxopentanoate Ethyl 4-oxovalerate Ethyl acetylpropanoate Ethyl ketovalerate Ethyl laevulinate Ethyl levulate Ethyl levulinate (natural) FEMA No. 2442 Levulinic acid, ethyl ester NSC 24876 Pentanoic acid, 4-oxo-, ethyl ester