Pyrazine, 2-ethyl-3,5-dimethyl-

• Formula: C₈H₁₂N₂
• Molecular weight: 136.1943
• IUPAC Standard InChI: InChI=1S/C8H12N2/c1-4-8-7(3)10-6(2)5-9-8/h5H,4H2,1-3H3 Copy

  
• IUPAC Standard InChIKey: JZBCTZLGKSYRSF-UHFFFAOYSA-N Copy
• CAS Registry Number: 13925-07-0
• 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-dimethylpyrazine; Pyrazine, 3,5-dimethyl-2-ethyl-; FEMA 3150; Pyrazine, 2,6-dimethyl-3-ethyl-; 2,6-Dimethyl-3-ethylpyrazine; 3,5-Dimethyl-2-ethylpyrazine; 3-Ethyl-2,6-dimethylpyrazine; Pyrazine, 3-ethyl-2,6-dimethyl; 2-Ethyl-3,5(6)-dimethylpyrazine
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• Information on this page:
  • Normal alkane RI, polar column, temperature ramp
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
  • Gas Chromatography
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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

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.

Puvipirom and Chaisei, 2012
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Rochat, Egger, et al., 2009
Rochat, S.; Egger, J.; Chaintreau, A., Strategy for the identification of key odorants: application to shrimp aroma, J. Chromatogr. A, 2009, 1216, 36, 6424-6432, https://doi.org/10.1016/j.chroma.2009.07.014 . [all data]

Characterization of Pyrazines in Some Chinese Liquors and Their Approximate Concentrations, 2007
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Schirack, Drake, et al., 2006
Schirack, A.V.; Drake, M.A.; Sander, T.H.; Sandeep, K.P., Characterization of aroma-active compounds in microwave blanched peanuts, J. Food Sci., 2006, 71, 9, c513-c520, https://doi.org/10.1111/j.1750-3841.2006.00173.x . [all data]

Ishizaki, Tachihara, et al., 2005
Ishizaki, S.; Tachihara, T.; Tamura, H.; Yanai, T.; Kitahara, T., Evaluation of odour-active compounds in roasted shrimp (Sergia lucens Hansen) by aroma extract dilution analysis, Flavour Fragr. J., 2005, 20, 6, 562-566, https://doi.org/10.1002/ffj.1484 . [all data]

Kumazawa, Kubota, et al., 2005
Kumazawa, K.; Kubota, K.; Masuda, H., Influence of Manufacturing Conditions and Crop Season on the Formation of 4-Mercapto-4-methyl-2-pentanone in Japanese Green Tea (Sen-cha), J. Agric. Food Chem., 2005, 53, 13, 5390-5396, https://doi.org/10.1021/jf050392z . [all data]

Ishikawa, Ito, et al., 2004
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Akiyama, Murakami, et al., 2003
Akiyama, M.; Murakami, K.; Ohtani, N.; Iwatsuki, K.; Sotoyama, K.; Wada, A.; Tokuno, K.; Iwabuchi, H.; Tanaka, K., Analysis of volatile compounds released during the grinding of roasted coffee beans using solid-phase microextraction, J. Agric. Food Chem., 2003, 51, 7, 1961-1969, https://doi.org/10.1021/jf020724p . [all data]

Andueza, Maeztu, et al., 2003
Andueza, S.; Maeztu, L.; Pascual, L.; Ibanez, C.; de Pena M.P.; Cid, C., Influence of extraction temperature on the final quality of espresso coffee, J. Sci. Food Agric., 2003, 83, 3, 240-248, https://doi.org/10.1002/jsfa.1304 . [all data]

Andueza, de Peña, et al., 2003
Andueza, S.; de Peña, M.P.; Cid, C., Chemical and sensorial characteristics of espresso coffee as affected by grinding and torrefacto roast, J. Agric. Food Chem., 2003, 51, 24, 7034-7039, https://doi.org/10.1021/jf034628f . [all data]

Kumazawa and Masuda, 2002
Kumazawa, K.; Masuda, H., Identification of potent odorants in different green tea varieties using flavor dilution technique, J. Agric. Food Chem., 2002, 50, 20, 5660-5663, https://doi.org/10.1021/jf020498j . [all data]

Sanz, Czerny, et al., 2002
Sanz, C.; Czerny, M.; Cid, C.; Schieberle, P., Comparison of potent odorants in a filtered coffee brew and in an instant coffee beverage by aroma extract dilution analysis (AEDA), Eur. Food Res. Technol., 2002, 214, 4, 299-302, https://doi.org/10.1007/s00217-001-0459-9 . [all data]

Cadwallader and Heo, 2001
Cadwallader, K.R.; Heo, J., Aroma of roasted sesame oil: characterization by direct thermal desorption-gas chromatography-olfactometry and sample dilution analysis, Am. Chem. Soc. Symp. Ser., 2001, 782, 187-202. [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]

Kim, Baek, et al., 2000
Kim, D.S.; Baek, H.H.; Ahn, C.B.; Byun, D.S.; Jung, K.J.; Lee, H.G.; Cadwallader, K.R.; Kim, H.R., Development and characterization of a flavoring agent from oyster cooker effluent, J. Agric. Food Chem., 2000, 48, 10, 4839-4843, https://doi.org/10.1021/jf991096n . [all data]

Buttery, Orts, et al., 1999
Buttery, R.G.; Orts, W.J.; Takeoka, G.R.; Nam, Y., Volatile flavor components of rice cakes, J. Agric. Food Chem., 1999, 47, 10, 4353-4356, https://doi.org/10.1021/jf990140w . [all data]

Kumazawa and Masuda, 1999
Kumazawa, K.; Masuda, H., Identification of potent odorants in Japanese green tea (Sen-cha), J. Agric. Food Chem., 1999, 47, 12, 5169-5172, https://doi.org/10.1021/jf9906782 . [all data]

Buttery and Ling, 1998
Buttery, R.G.; Ling, L.C., Additional studies on flavor components of corn tortilla chips, J. Agric. Food Chem., 1998, 46, 7, 2764-2769, https://doi.org/10.1021/jf980125b . [all data]

Chyau, Lin, et al., 1997
Chyau, C.-C.; Lin, Y.-C.; Mau, J.-L., Storage stability of deep-fried shallot flavoring, J. Agric. Food Chem., 1997, 45, 8, 3211-3215, https://doi.org/10.1021/jf970109z . [all data]

Umano, Hagi, et al., 1995
Umano, K.; Hagi, Y.; Nakahara, K.; Shyoji, A.; Shibamoto, T., Volatile chemicals formed in the headspace of a heated D-glucose/L-cysteine Maillard model system, J. Agric. Food Chem., 1995, 43, 8, 2212-2218, https://doi.org/10.1021/jf00056a046 . [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]

Wong and Bernhard, 1988
Wong, J.M.; Bernhard, R.A., Effect of nitrogen source on pyrazine formation, J. Agric. Food Chem., 1988, 36, 1, 123-129, https://doi.org/10.1021/jf00079a032 . [all data]

Wu, Liou, et al., 1987
Wu, C.-M.; Liou, S.-E.; Chang, Y.-H.; Chiang, W., Volatile compounds of the wax gourd (Benincasa hispida, Cogn) and a wax gourd beverage, J. Food Sci., 1987, 52, 1, 132-134, https://doi.org/10.1111/j.1365-2621.1987.tb13988.x . [all data]

Schieberle and Grosch, 1983
Schieberle, P.; Grosch, W., Identifizierung von Aromastoffen aus der Kruste von Roggenbrot, Z. Lebensm. Unters. Forsch., 1983, 177, 3, 173-180, https://doi.org/10.1007/BF01146791 . [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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