5396-89-4 AI3-06229 Acetoacetic acid, benzyl ester Acetoacetic acid, benzyl ester (8CI) Benzyl 3-oxobutanoate Benzyl acetoacetate Benzyl acetylacetate Benzyl beta-ketobutyrate Butanoic acid, 3-oxo-, phenylmethyl ester EINECS 226-416-4 FEMA No. 2136 NSC 4391 Phenylmethyl 3-oxobutanoate