1522-46-9 152548-74-8 2-Isopropylacetoacetic acid ethyl ester AI3-11197 Acetoacetic acid, 2-isopropyl-, ethyl ester (8CI) Butanoic acid, 2-acetyl-3-methyl-, ethyl ester EINECS 216-192-6 Ethyl 2-acetyl-3-methylbutanoate Ethyl 2-acetyl-3-methylbutyrate Ethyl 2-isopropylacetoacetate Ethyl alpha-isopropylacetoacetate NSC 18754 NSC 25315 NSC 54978