2H-Pyran-2-one, 4-methoxy-6-methyl-

• Formula: C₇H₈O₃
• Molecular weight: 140.1366
• IUPAC Standard InChI: InChI=1S/C7H8O3/c1-5-3-6(9-2)4-7(8)10-5/h3-4H,1-2H3 Copy

  
• IUPAC Standard InChIKey: MTZAUZNQAMNFME-UHFFFAOYSA-N Copy
• CAS Registry Number: 672-89-9
• 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.
• Other names: Methyltriacetolactone; 4-Methoxy-6-methyl-2H-pyran-2-one; Methyltriacetolacton; 2H-Pyran-2-one, 6-methyl-4-methoxy
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• Information on this page:
  • Phase change data
  • Reaction thermochemistry data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
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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 by: William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Reaction 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

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

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By formula: C₇H₈O₃ = C₇H₈O₃

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

Gas Chromatography

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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

Normal alkane RI, non-polar column, temperature ramp

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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.

Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw, Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2 . [all data]

Beak, Mueller, et al., 1974
Beak, P.; Mueller, D.S.; Lee, J., Equilibration studies. Determination of the enthalpy difference between methyltropic isomers from heats of methylation, J. Am. Chem. Soc., 1974, 96, 3867-3874. [all data]

Peppard, 1992
Peppard, T.L., Volatile flavor constituents of Monstera deliciosa, J. Agric. Food Chem., 1992, 40, 2, 257-262, https://doi.org/10.1021/jf00014a018 . [all data]

Notes

Go To: Top, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), Gas Chromatography, References

• Symbols used in this document:
  

  ΔrH°	Enthalpy of reaction at standard conditions
  ΔvapH	Enthalpy of vaporization

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