4-03-00-01550 (Beilstein Handbook Reference) 638-07-3 Acetoacetic acid, 4-chloro-, ethyl ester BRN 1761275 Butanoic acid, 4-chloro-3-oxo-, ethyl ester CCRIS 6791 EINECS 211-317-0 Ethyl 4-chloro-3-oxobutanoate Ethyl 4-chloroacetoacetate Ethyl gamma-chloroacetoacetate