Pyrazine, 2-(n-propyl)-
- Formula: C7H10N2
- Molecular weight: 122.1677
- IUPAC Standard InChI: InChI=1S/C7H10N2/c1-2-3-7-6-8-4-5-9-7/h4-6H,2-3H2,1H3
- IUPAC Standard InChIKey: DJLLTFRHLPVCEL-UHFFFAOYSA-N
- CAS Registry Number: 18138-03-9
- 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: Propylpyrazine; 2-Propylpyrazine; N-Propylpyrazine
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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 | Capillary |
|---|---|---|---|---|
| Active phase | HP-Innowax | HP-Wax | HP-Wax | HP-Wax |
| Column length (m) | 50. | 60. | 60. | 60. |
| Carrier gas | Helium | He | He | He |
| Substrate | ||||
| Column diameter (mm) | 0.20 | 0.25 | 0.25 | 0.25 |
| Phase thickness (μm) | 0.33 | 0.5 | 0.5 | 0.5 |
| Tstart (C) | 50. | 40. | 40. | 40. |
| Tend (C) | 250. | 190. | 190. | 190. |
| Heat rate (K/min) | 10. | 3. | 3. | 3. |
| Initial hold (min) | 6. | 6. | 6. | |
| Final hold (min) | 6. | |||
| I | 1404. | 1447. | 1447. | 1447. |
| Reference | Du, Clery, et al., 2008 | Sanz, Maeztu, et al., 2002 | Maeztu, Sanz, et al., 2001 | Sanz, Ansorena, et al., 2001 |
| Comment | MSDC-RI | 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.
Du, Clery, et al., 2008
Du, Z.; Clery, R.; Hammond, C.J.,
Volatile organic nitrogen-containing constituents in ambrette seed Abelmoschus moschatus Medik (Malvaceae),
J. Agric. Food Chem., 2008, 56, 16, 7388-7392, https://doi.org/10.1021/jf800958d
. [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]
Maeztu, Sanz, et al., 2001
Maeztu, L.; Sanz, C.; Andueza, S.; de Peña, M.P.; Bello, J.; Cid, C.,
Characterization of espresso coffee aroma by static headspace GC-MS and sensory flavor profile,
J. Agric. Food Chem., 2001, 49, 11, 5437-5444, https://doi.org/10.1021/jf0107959
. [all data]
Sanz, Ansorena, et al., 2001
Sanz, C.; Ansorena, D.; Bello, J.; Cid, C.,
Optimizing headspace temperature and time sampling for identification of volatile compounds in ground roasted Arabica coffee,
J. Agric. Food Chem., 2001, 49, 3, 1364-1369, https://doi.org/10.1021/jf001100r
. [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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