1522-46-9 2-Isopropylacetoacetic acid ethyl ester Acetoacetic acid, 2-isopropyl-, ethyl ester Butanoic acid, 2-acetyl-3-methyl-, ethyl ester Ethyl .alpha.-isopropylacetoacetate Ethyl 2-acetyl-3-methylbutanoate Ethyl 2-isopropylacetoacetate NSC18754