has functional parent is conjugate base of 3-oxo fatty acid anion acetoacetate 101.024 101.08070 3-oxobutanoate A 3-oxo monocarboxylic acid anion that is the conjugate base of acetoacetic acid, arising from deprotonation of the carboxy group. Acetoacetate Acetoacetate ion(1-) Beilstein:4128534 Butanoic acid, 3-oxo-, ion(1-) C4H5O3 CAS:141-81-1 CC(=O)CC([O-])=O CHEBI:13705 InChI=1S/C4H6O3/c1-3(5)2-4(6)7/h2H2,1H3,(H,6,7)/p-1 KEGG:C00164 MetaCyc:3-KETOBUTYRATE Reaxys:4128534 UM-BBD_compID:c0069 WDJHALXBUFZDSR-UHFFFAOYSA-M acetoacetate chebi_ontology acetoacetic acid butyrate