3H-2-Benzopyran-3-one, 1,4-dihydro-
- Formula: C9H8O2
- Molecular weight: 148.1586
- IUPAC Standard InChI: InChI=1S/C9H8O2/c10-9-5-7-3-1-2-4-8(7)6-11-9/h1-4H,5-6H2
- IUPAC Standard InChIKey: ILHLUZUMRJQEAH-UHFFFAOYSA-N
- CAS Registry Number: 4385-35-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
View 3d structure (requires JavaScript / HTML 5) - Other names: 3-Isochromanone; 1,4-dihydro-3H-2-benzopyran-3-one
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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
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔsubH° | 23.3 ± 0.33 | kcal/mol | C | Matos, Sousa, et al., 2009 |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Method | Reference |
|---|---|---|---|
| 4.37 | 355.9 | DSC | Matos, Sousa, et al., 2009 |
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.
Matos, Sousa, et al., 2009
Matos, M. Agostinha R.; Sousa, Clara C.S.; Morais, Victor M.F.,
Experimental and computational thermochemistry of the isomers: Chromanone, 3-isochromanone, and dihydrocoumarin,
The Journal of Chemical Thermodynamics, 2009, 41, 3, 308-314, https://doi.org/10.1016/j.jct.2008.08.012
. [all data]
Notes
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- Symbols used in this document:
ΔfusH Enthalpy of fusion ΔsubH° Enthalpy of sublimation at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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