4H-Pyran-4-one, 2,3-dihydro-3,5-dihydroxy-6-methyl-
- Formula: C6H8O4
- Molecular weight: 144.1253
- IUPAC Standard InChI: InChI=1S/C6H8O4/c1-3-5(8)6(9)4(7)2-10-3/h4,7-8H,2H2,1H3
- IUPAC Standard InChIKey: VOLMSPGWNYJHQQ-UHFFFAOYSA-N
- CAS Registry Number: 28564-83-2
- 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: 3,5-Dihydroxy-6-methyl-2,3-dihydro-4H-pyran-4-one; 2,3-dihydro-3,5-dihydroxy--6-methyl-4H-pyran-4-one; Pyranone; 2,3-Dihydro-3,5-dihydroxy-6-methyl-4-pyrone; 3-Hydroxy-2,3-dihydromaltol; 3,5-Dihydroxy-6-methyl-2H-pyran-4(3H)-one; 3,5-Dihydroxy-2,3-dihydro-6-methyl-4-pyran-4-one, dihydroxy maltol; 2,3-dihydro-3,5-dihydroxy-6-methyl-4(4H)-pyranone; 2,3-Dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one (pyranone); 2,3-Dihydro-3,5-dihydroxy-6-methyl-4H-pyrene-4-one
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- Other data available:
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Normal alkane RI, polar column, custom temperature program
Go To: Top, 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
| Column type | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|
| Active phase | BP-20 | BP-20 | DB-Wax | DB-Wax |
| Column length (m) | 30. | 30. | 30. | 30. |
| Carrier gas | He | He | He | He |
| Substrate | ||||
| Column diameter (mm) | 0.25 | 0.25 | 0.32 | 0.32 |
| Phase thickness (μm) | 0.25 | 0.25 | 0.25 | 0.25 |
| Program | 50C(1min) => 2.5C/min => 100C => 2C/min => 180C => 15C/min => 220C | 50C(1min) => 2.5C/min => 100C => 2C/min => 180C => 15C/min => 220C | 45C(5min) => 5C/min => 150C => 10C/min => 240C (10min) | 45C(5min) => 5C/min => 150C => 10C/min => 240C (10min) |
| I | 2225. | 2229. | 2240. | 2240. |
| Reference | Pontes, Marques, et al., 2007 | Pontes, Marques, et al., 2007 | Krings, Zelena, et al., 2006 | Krings, Zelena, et al., 2006 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
References
Go To: Top, Normal alkane RI, polar column, custom temperature program, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Pontes, Marques, et al., 2007
Pontes, M.; Marques, J.C.; Camara, J.S.,
Screening of volatile composition from Portuguese multifloral honeys using headspace solid-phase microextraction-gas chromatography-quadrupole mass spectrometry,
Talanta, 2007, 74, 1, 91-103, https://doi.org/10.1016/j.talanta.2007.05.037
. [all data]
Krings, Zelena, et al., 2006
Krings, U.; Zelena, K.; Wu, S.; Berger, R.G.,
Thin-layer high-vacuum distillation to isolate volatile flavour compounds of cocoa powder,
Eur. Food Res. Technol., 2006, 223, 5, 675-681, https://doi.org/10.1007/s00217-006-0252-x
. [all data]
Notes
Go To: Top, Normal alkane RI, polar column, custom temperature program, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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