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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Gas Chromatography
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
Van Den Dool and Kratz RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | BPX-5 | 1169. | Ames, Guy, et al., 2001 | 50. m/0.32 mm/0.25 μm, He, 60. C @ 5. min, 4. K/min, 250. C @ 10. min |
| Capillary | DB-1 | 1127. | Wu, Wang, et al., 2000 | 60. m/0.25 mm/1. μm, N2, 5. K/min, 200. C @ 30. min; Tstart: 30. C |
| Capillary | BPX-5 | 1173. | Aaslyng, Elmore, et al., 1998 | 50. m/0.32 mm/0.50 μm, He, 4. K/min; Tstart: 40. C; Tend: 280. C |
Van Den Dool and Kratz RI, polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | CP-Wax 52CB | 1501. | Mahadevan and Farmer, 2006 | 60. C @ 5. min, 4. K/min, 220. C @ 30. min; Column length: 50. m; Column diameter: 0.32 mm |
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-5 | 1163. | Fan and Qian, 2006 | 30. m/0.32 mm/1. μm, He, 40. C @ 2. min, 4. K/min, 250. C @ 15. min |
| Capillary | DB-5 | 1163. | Fan and Qian, 2005 | 30. m/0.32 mm/0.25 μm, N2, 40. C @ 2. min, 4. K/min, 250. C @ 5. min |
| Capillary | HP-5 | 1155.5 | Leffingwell and Alford, 2005 | 60. m/0.32 mm/0.25 μm, He, 30. C @ 2. min, 2. K/min, 260. C @ 28. min |
Normal alkane RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | VF-5 | 1139. | Shivashankar, Roy, et al., 2012 | 30. m/0.25 mm/0.25 μm, Helium; Program: 50 0C (2 min) 3 0C/min -> 200 0C (3 min) 10 0C/min -> 220 0C (8 min) |
| Capillary | VF-5 | 1120. | Shivashankar, Roy, et al., 2012 | 30. m/0.25 mm/0.25 μm, Helium; Program: not specified |
| Capillary | HP-5 | 1163. | Characterization of Pyrazines in Some Chinese Liquors and Their Approximate Concentrations, 2007 | 30. m/0.25 mm/0.25 μm, He; Program: 50C(2min) => 2C/min => 140C => 10C/min => 280C (10min) |
| Capillary | CP Sil 5 CB | 1138. | Counet, Ouwerx, et al., 2004 | 50. m/0.32 mm/1.2 μm; Program: 36C => 20C/min => 85C => 1C/min => 145C => 3C/min => 250C(30min) |
Normal alkane RI, polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-Wax | 1491. | Characterization of Pyrazines in Some Chinese Liquors and Their Approximate Concentrations, 2007 | 30. m/0.25 mm/0.25 μm, He, 4. K/min, 230. C @ 15. min; Tstart: 50. C |
| Capillary | DB-Wax | 1491. | Fan and Qian, 2006 | 30. m/0.32 mm/0.25 μm, He, 40. C @ 2. min, 4. K/min, 230. C @ 15. min |
| Capillary | HP-FFAP | 1521. | Qian and Reineccius, 2002 | 25. m/0.32 mm/0.52 μm, 60. C @ 1. min, 5. K/min, 240. C @ 5. min |
| Capillary | Carbowax 20M | 1502. | Liardon and Ledermann, 1980 | H2, 2. K/min; Column length: 39. m; Column diameter: 0.30 mm; Tstart: 60. C; Tend: 220. C |
| Capillary | Carbowax 20M | 1510. | Shibamoto and Russell, 1977 | 1. K/min; Column length: 100. m; Column diameter: 0.25 mm; Tstart: 70. C; Tend: 170. C |
| Capillary | Carbowax 20M | 1512. | Shibamoto and Russell, 1977 | 1. K/min; Column length: 100. m; Column diameter: 0.25 mm; Tstart: 70. C; Tend: 170. C |
References
Go To: Top, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Ames, Guy, et al., 2001
Ames, J.M.; Guy, R.C.E.; Kipping, G.J.,
Effect of pH, temperature, and moisture on the formation of volatile compounds in glycine/glucose model systems,
J. Agric. Food Chem., 2001, 49, 9, 4315-4323, https://doi.org/10.1021/jf010198m
. [all data]
Wu, Wang, et al., 2000
Wu, C.-M.; Wang, Z.; Wu, Q.H.,
Volatile compounds produced from monosodium glutamate in common food cooking,
J. Agric. Food Chem., 2000, 48, 6, 2438-2442, https://doi.org/10.1021/jf9907743
. [all data]
Aaslyng, Elmore, et al., 1998
Aaslyng, M.D.; Elmore, J.S.; Mottram, D.S.,
Comparison of the aroma characteristics of acid-hydrolyzed and enzyme-hydrolyzed vegetable proteins produced from soy,
J. Agric. Food Chem., 1998, 46, 12, 5225-5231, https://doi.org/10.1021/jf9806816
. [all data]
Mahadevan and Farmer, 2006
Mahadevan, K.; Farmer, L.,
Key Odor Impact Compounds in Three Yeast Extract Pastes,
J. Agric. Food Chem., 2006, 54, 19, 7242-7250, https://doi.org/10.1021/jf061102x
. [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]
Fan and Qian, 2005
Fan, W.; Qian, M.C.,
Headspace Solid Phase Microextraction and Gas Chromatography-Olfactometry Dilution Analysis of Young and Aged Chinese Yanghe Daqu Liquors,
J. Agric. Food Chem., 2005, 53, 20, 7931-7938, https://doi.org/10.1021/jf051011k
. [all data]
Leffingwell and Alford, 2005
Leffingwell, J.C.; Alford, E.D.,
Volatile constituents of Perique tobacco,
Electron. J. Environ. Agric. Food Chem., 2005, 4, 2, 899-915. [all data]
Shivashankar, Roy, et al., 2012
Shivashankar, S.; Roy, T.K.; Moorthy, P.N.R.,
Headspace solid phase micro extraction and GC/MS analysis of the volatile components in seed and cake of Azadirachta indica A. juss,
Chem. Bull. of Politechnika Univ. Timisoara, Romania, 2012, 57(71), 1, 1-6. [all data]
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]
Counet, Ouwerx, et al., 2004
Counet, C.; Ouwerx, C.; Rosoux, D.; Collin, S.,
Relationship between procyanidin and flavor contents of cocoa liquors from different origins,
J. Agric. Food Chem., 2004, 52, 20, 6243-6249, https://doi.org/10.1021/jf040105b
. [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, Gas Chromatography, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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