Pyrazine, 2,5-dimethyl-3-(2-methylpropyl)-
- Formula: C10H16N2
- Molecular weight: 164.2474
- IUPAC Standard InChI: InChI=1S/C10H16N2/c1-7(2)5-10-9(4)11-6-8(3)12-10/h6-7H,5H2,1-4H3
- IUPAC Standard InChIKey: KEJOEQXAEQCAKT-UHFFFAOYSA-N
- CAS Registry Number: 32736-94-0
- 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: Pyrazine, 3-isobutyl-2,5-dimethyl-; 2,5-Dimethyl-3-isobutylpyrazine; 3-Isobutyl-2,5-dimethylpyrazine; 2,5-Dimethyl-3-(2-methylpropyl)pyrazine; 2,5-Dimethyl-6-isobutylpyrazine; 3,6-Dimethyl-2-isobutylpyrazine
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- Other data available:
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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 | DB-Wax | FFAP | FFAP |
| Column length (m) | 30. | 50. | 50. |
| Carrier gas | He | He | He |
| Substrate | |||
| Column diameter (mm) | 0.25 | 0.28 | 0.28 |
| Phase thickness (μm) | 0.25 | ||
| Tstart (C) | 50. | 60. | 60. |
| Tend (C) | 230. | 240. | 240. |
| Heat rate (K/min) | 4. | 2. | 2. |
| Initial hold (min) | 5. | 5. | |
| Final hold (min) | 15. | ||
| I | 1506. | 1521. | 1520. |
| Reference | Characterization of Pyrazines in Some Chinese Liquors and Their Approximate Concentrations, 2007 | Vernin, Metzger, et al., 1988 | Vernin, Metzger, et al., 1988 |
| 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.
Characterization of Pyrazines in Some Chinese Liquors and Their Approximate Concentrations, 2007
Characterization of Pyrazines in Some Chinese Liquors; Their Approximate Concentrations,
W. Fan; Y. Xu; Y. Zhang,
J. Agric. Food Chem., 2007, 55, 9956-9962. [all data]
Vernin, Metzger, et al., 1988
Vernin, G.; Metzger, J.; Obretenov, T.; Suon, K.-N.; Fraisse, D.,
GC/MS (EI,PCI,SIM)-data bank analysis of volatile compounds arising from thermal degradation of glucose-valine amadori intermediates
in Flavors and Fragrances: A World Perspective. Proceedings of the 10th International Congress of Essential Oils, Fragrances and Flavors, Lawrence,B.M.; Mookherjee,B.D.; Willis,B.J., ed(s)., Elsevier, New York, 1988, 999-1028. [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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