Oxazole, 4,5-dimethyl-
- Formula: C5H7NO
- Molecular weight: 97.1152
- IUPAC Standard InChI: InChI=1S/C5H7NO/c1-4-5(2)7-3-6-4/h3H,1-2H3
- IUPAC Standard InChIKey: YVORRVFKHZLJGZ-UHFFFAOYSA-N
- CAS Registry Number: 20662-83-3
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 4,5-Dimethyloxazole; 5-Methyl-4-methyloxazole
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Normal alkane RI, polar column, temperature ramp
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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
| Column type | Capillary | Capillary | Capillary |
|---|---|---|---|
| Active phase | HP-Innowax | HP-Wax | DB-Wax |
| Column length (m) | 15. | 60. | 60. |
| Carrier gas | Helium | He | He |
| Substrate | |||
| Column diameter (mm) | 0.32 | 0.25 | 0.25 |
| Phase thickness (μm) | 0.50 | 0.5 | |
| Tstart (C) | 40. | 40. | 60. |
| Tend (C) | 250. | 190. | 180. |
| Heat rate (K/min) | 3. | 3. | 4. |
| Initial hold (min) | 6. | 4. | |
| Final hold (min) | 30. | ||
| I | 1139. | 1163. | 1156. |
| Reference | Puvipirom and Chaisei, 2012 | Sanz, Maeztu, et al., 2002 | Eiserich, Macku, et al., 1992 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI |
References
Go To: Top, Normal alkane RI, polar column, temperature ramp, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Puvipirom and Chaisei, 2012
Puvipirom, J.; Chaisei, S.,
Contribution of roasted grains and seeds in aroma of oleang (Thai coffee drink),
Int. Food Res. J., 2012, 19, 2, 583-588. [all data]
Sanz, Maeztu, et al., 2002
Sanz, C.; Maeztu, L.; Zapelena, M.J.; Bello, J.; Cid, C.,
Profiles of volatile compounds and sensory analysis of three blends of coffee: influence of different proportions of Arabica and Robusta and influence of roasting coffee with sugar,
J. Sci. Food Agric., 2002, 82, 8, 840-847, https://doi.org/10.1002/jsfa.1110
. [all data]
Eiserich, Macku, et al., 1992
Eiserich, J.P.; Macku, C.; Shibamoto, T.,
Volatile antioxidants formed from an L-cysteine/D-glucose Maillard model system,
J. Agric. Food Chem., 1992, 40, 10, 1982-1988, https://doi.org/10.1021/jf00022a050
. [all data]
Notes
Go To: Top, Normal alkane RI, polar column, temperature ramp, References
- Symbols used in this document:
Tend Final temperature Tstart Initial temperature - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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