Ethyl (2E)-4-oxo-2-butenoate structure

Ethyl (2E)-4-oxo-2-butenoate

ethyl (E)-4-oxobut-2-enoate

Also Known As: Ethyl trans-4-oxo-2-butenoate|(E)-Ethyl 4-oxobut-2-enoate|Ethyl 4-oxobut-2-enoate|Ethyl (E)-4-oxobut-2-enoate|ethyl fumaraldehydate|Ethyl 4-oxocrotonate|Ethyl 3-formylacrylate|Minodronic Impurity 24|ethyl (2e)-4-oxobut-2-enoate|ethyl-(E)-4-oxobutenoate|(E)-ethyl 3-formylacrylate|2-Butenoic acid, 4-oxo-, ethyl ester, (2E)-|ethyl (2E)-4-oxo-2-butenoate|(E)-Ethyl4-oxobut-2-enoate|ethyl (E)-4-oxo-2-butenoate|ethyl-4-oxo-trans-2-butenoate|Fumaraldehydic Acid Ethyl Ester|4-oxo-2-butenoic Acid Ethyl Ester|(E)-4-Oxo-2-butenoic acid ethyl ester|CE0113|Fumaric acid semialdehyde ethyl ester|ETHYLTRANS-4-OXO-2-BUTENOATE|(E)-4-oxo-but-2-enoic acid ethyl ester|CS-W020184|Ethyl trans-4-oxo-2-butenoate, 96%|2-Butenoic acid, 4-oxo-, ethyl ester|5-Bromo-3-methyl-2-(morpholino)pyridine|(2E)-4-Oxo-2-butenoic Acid Ethyl Ester

CAS: 4038-33-9
Molecular Formula C6H8O3
Molecular Weight 128.04735 g/mol
LogP 0.3046
Topological Polar Surface Area 43.37 Ų
Hydrogen Bond Donors 0
Hydrogen Bond Acceptors 3
Rotatable Bonds 3
Exact Mass 128.04735
Monoisotopic Mass 128.04735
Heavy Atoms 9
Complexity 126.26466

Chemical Identifiers

CAS Number 4038-33-9
SMILES CCOC(=O)/C=C/C=O

Product Overview

Ethyl (2E)-4-oxo-2-butenoate (CAS 4038-33-9), with molecular formula C6H8O3 and molecular weight 128.04735 g/mol. IUPAC: ethyl (E)-4-oxobut-2-enoate.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
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