4-03-00-01536 (Beilstein Handbook Reference) 591-60-6 Acetoacetic acid, butyl ester BRN 1761408 Butanoic acid, 3-oxo-, butyl ester Butyl 3-ketobutanoate Butyl 3-ketobutyrate Butyl 3-oxobutanoate Butyl 3-oxobutyrate Butyl acetoacetate Butylester kyseliny acetoctove [Czech] EINECS 209-722-2 FEMA No. 2176 N-BUTYL ACETOACETATE NSC 97211