2-Butenedioic acid, 2-methyl-, (E)-
- Formula: C5H6O4
- Molecular weight: 130.0987
- 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
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- 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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Reaction thermochemistry data
Go To: Top, Mass spectrum (electron ionization), UV/Visible spectrum, 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
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Individual Reactions
By formula: C5H4O3 + H2O = C5H6O4
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -34.0 | kJ/mol | Cm | Conn, Kistiakowsky, et al., 1942 | liquid phase; Heat of hydrolysis at 303 K |
By formula: C5H6O4 + Br2 = C5H6O4 + Br2
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔrH° | -5.1 ± 0.7 | kJ/mol | Eqk | Jwo, Huang, et al., 1987 | solid phase; HPLC |
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
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Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
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Origin | NIST Mass Spectrometry Data Center, 1994 |
NIST MS number | 134190 |
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
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Source | Jones, Whitham, et al., 1954 |
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Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 2544 |
Instrument | n.i.g. |
Melting point | 204.5 |
Boiling point | sub |
References
Go To: Top, Reaction thermochemistry data, 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.
Conn, Kistiakowsky, et al., 1942
Conn, J.B.; Kistiakowsky, G.B.; Roberts, R.M.; Smith, E.A.,
Heats of organic reactions. XIII. Heats of hydrolysis of some acid anhydrides,
J. Am. Chem. Soc., 1942, 64, 1747-17. [all data]
Jwo, Huang, et al., 1987
Jwo, J-J.; Huang, C-Y.; Chang, E-F.; Wu, R.R.,
Kinetic study of the bromine-catalyzed isomerization of methyl- and chloro-maleic acids in aqueous Ce(IV)-Br- -H2SO4 medium,
J. Chin. Chem. Soc. (Taipei), 1987, 34, 247-256. [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
Go To: Top, Reaction thermochemistry data, Mass spectrum (electron ionization), UV/Visible spectrum, References
- Symbols used in this document:
ΔrH° Enthalpy of reaction at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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