Butyl acetoacetate, acetoacetic acid butyl ester, EINECS 209-722-2, Butyl 3-oxobutyrate, acetoacetic acid n-butyl ester, ethyl-2-ethyl acetoacetate, Butyl 3-ketobutyrate, n-butyl acetoacetate, FEMA No. 2176, Butanoic acid,3-oxo-,butyl ester, Butyl 3-ketobutanoate, Butanoic acid, 3-oxo-, butyl ester, 3-oxobutyric acid n-butyl ester, 1-butyl acetoacetate