3-03-00-01207 (Beilstein Handbook Reference) 32807-28-6 ACETOACETIC ACID, 4-CHLORO-, METHYL ESTER BRN 1759939 Butanoic acid, 4-chloro-3-oxo-, methyl ester EINECS 251-230-5 Methyl 4-chloro-3-oxobutanoate Methyl 4-chloro-3-oxobutyrate Methyl 4-chloroacetoacetate Methyl gamma-chloroacetoacetate