2,3,5-Trimethyl-6-ethylpyrazine
- Formula: C9H14N2
- Molecular weight: 150.2209
- IUPAC Standard InChI: InChI=1S/C9H14N2/c1-5-9-8(4)10-6(2)7(3)11-9/h5H2,1-4H3
- IUPAC Standard InChIKey: FPOLJKZKOKXIFE-UHFFFAOYSA-N
- CAS Registry Number: 17398-16-2
- 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: 2-Ethyl-3,5,6-trimethylpyrazine; 6-Ethyl-2,3,5-trimethylpyrazine; Pyrazine, ethyltrimethyl
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- Information on this page:
- Other data available:
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Normal alkane RI, polar column, temperature ramp
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 | Capillary |
|---|---|---|---|---|---|
| Active phase | DB-Wax | DB-Wax | HP-FFAP | Carbowax 20M | Carbowax 20M |
| Column length (m) | 30. | 30. | 25. | 39. | 100. |
| Carrier gas | He | He | H2 | ||
| Substrate | |||||
| Column diameter (mm) | 0.25 | 0.32 | 0.32 | 0.30 | 0.25 |
| Phase thickness (μm) | 0.25 | 0.25 | 0.52 | ||
| Tstart (C) | 50. | 40. | 60. | 60. | 70. |
| Tend (C) | 230. | 230. | 240. | 220. | 170. |
| Heat rate (K/min) | 4. | 4. | 5. | 2. | 1. |
| Initial hold (min) | 2. | 1. | |||
| Final hold (min) | 15. | 15. | 5. | ||
| I | 1491. | 1491. | 1521. | 1502. | 1510. |
| Reference | Characterization of Pyrazines in Some Chinese Liquors and Their Approximate Concentrations, 2007 | Fan and Qian, 2006 | Qian and Reineccius, 2002 | Liardon and Ledermann, 1980 | Shibamoto and Russell, 1977 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary |
|---|---|
| Active phase | Carbowax 20M |
| Column length (m) | 100. |
| Carrier gas | |
| Substrate | |
| Column diameter (mm) | 0.25 |
| Phase thickness (μm) | |
| Tstart (C) | 70. |
| Tend (C) | 170. |
| Heat rate (K/min) | 1. |
| Initial hold (min) | |
| Final hold (min) | |
| I | 1512. |
| Reference | Shibamoto and Russell, 1977 |
| Comment | 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]
Fan and Qian, 2006
Fan, W.; Qian, M.C.,
Characterization of Aroma Compounds of Chinese Wuliangye and Jiannanchun Liquors by Aroma Extract Dilution Analysis,
J. Agric. Food Chem., 2006, 54, 7, 2695-2704, https://doi.org/10.1021/jf052635t
. [all data]
Qian and Reineccius, 2002
Qian, M.; Reineccius, G.,
Identification of aroma compounds in Parmigiano-Reggiano cheese by gas chromatography/olfactometry,
J. Dairy Sci., 2002, 85, 6, 1362-1369, https://doi.org/10.3168/jds.S0022-0302(02)74202-1
. [all data]
Liardon and Ledermann, 1980
Liardon, R.; Ledermann, S.,
volatile components of fermented soya hydrolysate. II. Composition of basic fraction,
Z. Lebensm. Unters. Forsch., 1980, 170, 3, 208-213, https://doi.org/10.1007/BF01042542
. [all data]
Shibamoto and Russell, 1977
Shibamoto, T.; Russell, G.F.,
A study of the volatiles isolated from a D-glucose-hydrogen sulfide-ammonia model system,
J. Agric. Food Chem., 1977, 25, 1, 109-112, https://doi.org/10.1021/jf60209a054
. [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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