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+
- IUPAC Standard InChIKey: HNEGQIOMVPPMNR-NSCUHMNNSA-N
- 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
The 3d structure may be viewed using Java or Javascript. - Stereoisomers:
- 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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Condensed phase thermochemistry data
Go To: Top, References, Notes
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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°solid | -824.4 ± 1.5 | kJ/mol | Ccb | Wilhoit and Lei, 1965 | |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔcH°solid | -2000.6 ± 1.4 | kJ/mol | Ccb | Wilhoit and Lei, 1965 | Reanalyzed by Cox and Pilcher, 1970, Original value = -2001.9 kJ/mol; Corresponding ΔfHºsolid = -824.42 kJ/mol (simple calculation by NIST; no Washburn corrections) |
References
Go To: Top, Condensed phase thermochemistry data, 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]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- 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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