2-Butenedioic acid, 2-methyl-, (E)-

• Formula: C₅H₆O₄
• Molecular weight: 130.0987
• IUPAC Standard InChI: InChI=1S/C5H6O4/c1-3(5(8)9)2-4(6)7/h2H,1H3,(H,6,7)(H,8,9)/b3-2+ Copy

  
• IUPAC Standard InChIKey: HNEGQIOMVPPMNR-NSCUHMNNSA-N Copy
• CAS Registry Number: 498-24-8
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
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• Stereoisomers:
  • 2-Butenedioic acid, 2-methyl-, (Z)-
  • Citraconic acid
• Other names: Mesaconic acid; trans-1-Propene-1,2-dicarboxylic acid; trans-2-Methyl-2-butenedioic acid; Methylfumaric acid; 2-Methylfumaric acid; (E)-2-Methyl-2-butenedioic acid; Butenedioic acid, methyl-, (E)-; Fumaric acid, methyl-; Mesaconate; Kyselina mesakonova; 2-Butenedioic acid, 2-methyl-, (2E)-; NSC 65438
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• Information on this page:
  • Condensed phase thermochemistry data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
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Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

IR Spectrum

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Gas Phase Spectrum

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Additional Data

Mass spectrum (electron ionization)

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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Additional Data

UV/Visible spectrum

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Victor Talrose, Eugeny B. Stern, Antonina A. Goncharova, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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Additional Data

References

Go To: Top, Condensed phase thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), UV/Visible spectrum, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Wilhoit and Lei, 1965
Wilhoit, R.C.; Lei, I., Thermochemistry of biologically important compounds. Heats of combustion of five organic acids., J. Chem. Eng. Data, 1965, 10, 166-168. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Jones, Whitham, et al., 1954
Jones, E.R.H.; Whitham, G.H.; Whiting, M.C., Researches on acetylenic compounds. Part XLIV. The reaction between nickel carbonyl and some esters of ω-acetylenic acids, J. Chem. Soc., 1954, 1865-1868. [all data]

Notes

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• Symbols used in this document:
  

  ΔcH°solid	Enthalpy of combustion of solid at standard conditions
  ΔfH°solid	Enthalpy of formation of solid at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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