For citations & permissions, please see: Citations & Permissions - Wiley Science Solutions*

*Links on SpectraBase are not permalinks.

(E)-4-ethoxy-2-keto-but-3-enoic acid ethyl ester

Compound with spectra: 1 NMR, and 1 MS (GC)

(E)-4-ethoxy-2-keto-but-3-enoic acid ethyl ester
SpectraBase Compound ID 96Mk8VRJqfY
InChI InChI=1S/C8H12O4/c1-3-11-6-5-7(9)8(10)12-4-2/h5-6H,3-4H2,1-2H3/b6-5+
InChIKey XPBYGYFJOZXYOE-AATRIKPKSA-N
Mol Weight 172.18 g/mol
Molecular Formula C8H12O4
Exact Mass 172.073559 g/mol

View Spectrum of (E)-4-ethoxy-2-keto-but-3-enoic acid ethyl ester

17O NMR Spectrum
Copyright Copyright © 2016-2024 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent CH3CN

View Spectrum of (E)-4-ethoxy-2-keto-but-3-enoic acid ethyl ester

MS (GC) Spectrum
Copyright Copyright © 2020-2024 John Wiley & Sons, Inc. All Rights Reserved.
Source of Spectrum NP-2-5554-0
  • Ethyl 4-(ethyloxy)-2-oxobut-3-enoate
Ethyl (E)-2-oxo-5-bromo-3-pentenoate
(Z)-2-keto-4-methylamino-but-3-enoic acid ethyl ester
Ethyl 2-Oxo-4-methyl-3-pentenoate
(Z)-1-diazonio-3-ethoxy-3-keto-prop-1-en-2-olate
(E)-2-ketohept-3-enoic acid methyl ester
methyl (3Z)-4-hydroxy-2-oxo-3-pentenoate
5-METHYL-2,3-DIHYDROFURAN-2,3-DIONE
(3Z)-3-Hexenyl 2-oxopropanoate
cis-3-Hexenyl 2-oxopropanoate
1-Ethyl 3-methyl 2-oxomalonate
Title Journal or Book Year
17O NMR Spectra of α,β-Unsaturated Carbonyl Compounds RCH=CHCOX: the Influence of Group X on the δ(17O) Value of the Carbonyl Oxygen and on the Shielding Effect of Group R Molecules 1999

This compound is available in the following databases:

KnowItAll NMR Spectral Library
Author: Wiley

The KnowItAll NMR Spectral Library offers a comprehensive collection of NMR reference spectra, including NMR, CNMR, and XNMR, and covers a wide range of compounds including organics, polymers, monomers, metabolites, and more. Learn more.

KnowItAll Mass Spectral Library
Author: Wiley

The KnowItAll Mass Spectral Library offers a comprehensive collection of mass spectra, including the renowned Wiley Registry, and access to a wide range of compounds including pure organics, drugs, steroids, additives, geochemicals, petrochemicals, biomarkers, and more. Learn more.

Other Resources
Unknown Identification

Search your unknown spectrum against the world's largest collection of reference spectra

KnowItAll Campus Solutions

KnowItAll offers faculty and students at your school access to all the tools you need for spectral analysis and structure drawing & publishing! Plus, access the world's largest spectral library.