2-Oxopentanedioic acid

• Formula: C₅H₆O₅
• Molecular weight: 146.0981
• IUPAC Standard InChI: InChI=1S/C5H6O5/c6-3(5(9)10)1-2-4(7)8/h1-2H2,(H,7,8)(H,9,10) Copy

  
• IUPAC Standard InChIKey: KPGXRSRHYNQIFN-UHFFFAOYSA-N Copy
• CAS Registry Number: 328-50-7
• 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: 2-Ketoglutaric acid; 2-Oxoglutaric acid; α-Ketoglutaric acid; Pentanedioic acid, 2-oxo-; Glutaric acid, 2-oxo-; Glutaric acid, α-keto-; 2-Oxo-1,5-pentanedioic acid; NSC 17391; α-Oxoglutaric acid
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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Henry's Law data
  • Mass spectrum (electron ionization)
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Phase change 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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

Enthalpy of fusion

References

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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. [all data]

Chattopadhyay and Ziemann, 2005
Chattopadhyay, Sulekha; Ziemann, Paul J., Vapor Pressures of Substituted and Unsubstituted Monocarboxylic and Dicarboxylic Acids Measured Using an Improved Thermal Desorption Particle Beam Mass Spectrometry Method, Aerosol Science and Technology, 2005, 39, 11, 1085-1100, https://doi.org/10.1080/02786820500421547 . [all data]

Contineanu, Chivu, et al., 2005
Contineanu, I.; Chivu, L.; Perisanu, S., Revista di Chim., 2005, 56, 7, 719. [all data]

Notes

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• Symbols used in this document:
  

  Tfus	Fusion (melting) point
  ΔfusH	Enthalpy of fusion
  ΔsubH	Enthalpy of sublimation

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