Pyrazine, (1-methylethenyl)-
- Formula: C7H8N2
- Molecular weight: 120.1518
- IUPAC Standard InChI: InChI=1S/C7H8N2/c1-6(2)7-5-8-3-4-9-7/h3-5H,1H2,2H3
- IUPAC Standard InChIKey: JMKUTMOIKCXELD-UHFFFAOYSA-N
- CAS Registry Number: 38713-41-6
- 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: Isopropenylpyrazine; 2-Isopropenylpyrazine; (1-Methylethenyl)pyrazine
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Normal alkane RI, non-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 | MDN-5 | DB-1 | DB-1 |
| Column length (m) | 60. | 60. | 60. |
| Carrier gas | He | He | He |
| Substrate | |||
| Column diameter (mm) | 0.25 | 0.32 | 0.25 |
| Phase thickness (μm) | 0.25 | 1. | 1. |
| Tstart (C) | 40. | 40. | 40. |
| Tend (C) | 270. | 280. | 260. |
| Heat rate (K/min) | 4. | 2. | 2. |
| Initial hold (min) | 4. | 2. | 5. |
| Final hold (min) | 5. | 40. | 60. |
| I | 1021. | 1083. | 1045. |
| Reference | van Loon, Linssen, et al., 2005 | Lu, Yu, et al., 1997 | Yu, Wu, et al., 1994 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI |
References
Go To: Top, Normal alkane RI, non-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.
van Loon, Linssen, et al., 2005
van Loon, W.A.M.; Linssen, J.P.H.; Legger, A.; Posthumus, M.A.; Voragen, A.G.J.,
Identification and olfactometry of French fries flavour extracted at mouth conditions,
Food Chem., 2005, 90, 3, 417-425, https://doi.org/10.1016/j.foodchem.2004.05.005
. [all data]
Lu, Yu, et al., 1997
Lu, G.; Yu, T.-H.; Ho, C.-T.,
Generation of flavor compounds by the reaction of 2-deoxyglucose with selected amino acids,
J. Agric. Food Chem., 1997, 45, 1, 233-236, https://doi.org/10.1021/jf960609c
. [all data]
Yu, Wu, et al., 1994
Yu, T.-H.; Wu, C.-M.; Ho, C.-T.,
Volatile compounds generated from the thermal interaction of glucose and alliin or deoxyalliin in propylene glycol,
Food Chem., 1994, 51, 3, 281-286, https://doi.org/10.1016/0308-8146(94)90028-0
. [all data]
Notes
Go To: Top, Normal alkane RI, non-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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