4-Methoxy-6-methyl-2-thiopyrone
- Formula: C7H8O2S
- Molecular weight: 156.202
- IUPAC Standard InChI: InChI=1S/C7H8O2S/c1-5-3-6(8-2)4-7(10)9-5/h3-4H,1-2H3
- IUPAC Standard InChIKey: PVBKLSUHIMQNMY-UHFFFAOYSA-N
- CAS Registry Number: 52911-98-5
- 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: 6-Methyl-4-methoxy-2H-pyran-2-thione
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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 (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 108.9 | 408. | A | Stephenson and Malanowski, 1987 | Based on data from 401. to 415. K. See also Dykyj, Svoboda, et al., 1999 and Beak, Mueller, et al., 1974. |
Enthalpy of sublimation
| ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 130.5 ± 5.9 | 408. | B | Beak, Mueller, et al., 1974 | Based on data from 402. to 415. K. |
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]
Dykyj, Svoboda, et al., 1999
Dykyj, J.; Svoboda, J.; Wilhoit, R.C.; Frenkel, M.L.; Hall, K.R.,
Vapor Pressure of Chemicals: Part A. Vapor Pressure and Antoine Constants for Hydrocarbons and Sulfur, Selenium, Tellurium and Hydrogen Containing Organic Compounds, Springer, Berlin, 1999, 373. [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]
Notes
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- Symbols used in this document:
ΔsubH Enthalpy of sublimation ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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