n-PrCOCH2CO2Et, ethyl 3-oxo-hexanoate, 3-Ketohexanoic Acid Ethyl Ester, Ethyl 3-Ketohexanoate, Hexanoic acid, 3-oxo-, ethyl ester, 3-Oxo-hexanoic acid ethyl ester, ethyl 3-oxo-caproate, Ethyl Butyrylacetate, 3-Oxohexanoic Acid Ethyl Ester, FEMA No. 3683, Hexanoic acid,3-oxo-,ethyl ester, Ethyl butyroacetate, Ethyl 3-oxohexanoate, ethyl 2-ethylacetoacetate, butyryl acetic acid ethyl ester, EINECS 221-835-9