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
- IUPAC Standard InChIKey: MTZAUZNQAMNFME-UHFFFAOYSA-N
- 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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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
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 13.7 | 400. | A | Stephenson and Malanowski, 1987 | Based on data from 385. to 434. K. |
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. |
|---|---|
| Origin | Japan AIST/NIMC Database- Spectrum MS-NW-8914 |
| NIST MS number | 238982 |
Gas Chromatography
Go To: Top, Phase change data, Mass spectrum (electron ionization), 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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-1 | 1297. | Peppard, 1992 | 30. m/0.25 mm/1.0 μm, He, 3. K/min, 250. C @ 30. min; Tstart: 40. C |
References
Go To: Top, Phase change data, Mass spectrum (electron ionization), Gas Chromatography, Notes
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]
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, Mass spectrum (electron ionization), Gas Chromatography, References
- Symbols used in this document:
ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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