Pyrazine, 2,3-diethyl-5-methyl-

• Formula: C₉H₁₄N₂
• Molecular weight: 150.2209
• IUPAC Standard InChI: InChI=1S/C9H14N2/c1-4-8-9(5-2)11-7(3)6-10-8/h6H,4-5H2,1-3H3 Copy

  
• IUPAC Standard InChIKey: PSINWXIDJYEXLO-UHFFFAOYSA-N Copy
• CAS Registry Number: 18138-04-0
• 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-Methyl-5,6-diethylpyrazine; 2,3-Diethyl-5-methylpyrazine; 5-Methyl-2,3-diethylpyrazine; 2,3-Diethyl-6-methylpyrazine
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• Information on this page:
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Mass spectrum (electron ionization)
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Gas Chromatography

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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

Van Den Dool and Kratz RI, non-polar column, temperature ramp

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Van Den Dool and Kratz RI, non-polar column, custom temperature program

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Van Den Dool and Kratz RI, polar column, temperature ramp

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Van Den Dool and Kratz RI, polar column, custom temperature program

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Normal alkane RI, non-polar column, temperature ramp

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Normal alkane RI, non-polar column, custom temperature program

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Normal alkane RI, polar column, temperature ramp

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Normal alkane RI, polar column, custom temperature program

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References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Steinhaus and Schieberle, 2007
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Avsar, Karagul-Yuceer, et al., 2004
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Bredie, Mottram, et al., 2002
Bredie, W.L.P.; Mottram, D.S.; Guy, R.C.E., Effect of temperature and pH on the generation of flavor volatiles in extrusion cooking of wheat flour, J. Agric. Food Chem., 2002, 50, 5, 1118-1125, https://doi.org/10.1021/jf0111662 . [all data]

Kim, 2001
Kim, J.S., Einfluss der Temperatur beim Rösten von Sesam auf Aroma und antioxidative Eigenschaften des Öls, PhD Thesis, Technischen Universität Berlin zur Erlangung des akademischen Grades, Berlin, 2001, 151. [all data]

Oruna-Concha, Duckham, et al., 2001
Oruna-Concha, M.J.; Duckham, S.C.; Ames, J.M., Comparison of volatile compounds isolated from the skin and flesh of four potato cultivars after baking, J. Agric. Food Chem., 2001, 49, 5, 2414-2421, https://doi.org/10.1021/jf0012345 . [all data]

Wu, Wang, et al., 2000
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Specht and Baltes, 1994
Specht, K.; Baltes, W., Identification of volatile flavor compounds with high aroma values from shallow-fried beef, J. Agric. Food Chem., 1994, 42, 10, 2246-2253, https://doi.org/10.1021/jf00046a031 . [all data]

Zhang, Dorjpalam, et al., 1992
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Izzo and Ho, 1991
Izzo, H.V.; Ho, C.-T., Isolation and identification of the volatile components of an extruded autolyzed yeast extract, J. Agric. Food Chem., 1991, 39, 12, 2245-2248, https://doi.org/10.1021/jf00012a029 . [all data]

Moon, Cliff, et al., 2006
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Duckham, S.C.; Dodson, A.T.; Bakker, J.; Ames, J.M., Volatile flavour components of baked potato flesh. A comparison of eleven potato cultivars, Nahrung/Food, 2001, 45, 5, 317-323, https://doi.org/10.1002/1521-3803(20011001)45:5<317::AID-FOOD317>3.0.CO;2-4 . [all data]

Rychlik and Bosset, 2001
Rychlik, M.; Bosset, J.O., Flavour and off-flavour compoundsof SwissGruy ere cheese. Evaluation of potent odorants, Int. Dairy J., 2001, 11, 11-12, 895-901, https://doi.org/10.1016/S0958-6946(01)00108-X . [all data]

Parker, Hassell, et al., 2000
Parker, J.K.; Hassell, G.M.E.; Mottram, D.S.; Guy, R.C.E., Sensory and instrumental analyses of volatiles generated during the extrusion cooking of oat flours, J. Agric. Food Chem., 2000, 48, 8, 3497-3506, https://doi.org/10.1021/jf991302r . [all data]

Tairu, Hofmann, et al., 2000
Tairu, A.O.; Hofmann, T.; Schieberle, P., Studies on the key odorants formed by roasting of wild mango seeds (Irvingia gabonensis), J. Agric. Food Chem., 2000, 48, 6, 2391-2394, https://doi.org/10.1021/jf990765u . [all data]

Jagella and Grosch, 1999
Jagella, T.; Grosch, W., Flavour and off-flavour compounds of black and white pepper ( Piper nigrum L.) I. Evaluation of potent odorants of black pepper by dilution and concentration techniques, Eur. Food Res. Technol., 1999, 209, 1, 16-21, https://doi.org/10.1007/s002170050449 . [all data]

Mutti and Grosch, 1999
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Hofmann and Schieberle, 1998
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Hofmann and Schieberle, 1997
Hofmann, T.; Schieberle, P., Identification of potent aroma compounds in thermally treated mixtures of glucose/cysteine and rhamnose/cysteine using aroma extract dilution techniques, J. Agric. Food Chem., 1997, 45, 3, 898-906, https://doi.org/10.1021/jf960456t . [all data]

Münch, Hofmann, et al., 1997
Münch, P.; Hofmann, T.; Schieberle, P., Comparison of key odorants generated by thermal treatment of commercial and self-prepared yeast extracts: influence of the amino acid composition on odorant formation, J. Agric. Food Chem., 1997, 45, 4, 1338-1344, https://doi.org/10.1021/jf960658p . [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]

Stephan and Steinhart, 1999
Stephan, A.; Steinhart, H., Identification of character impact odorants of different soybean lecithins, J. Agric. Food Chem., 1999, 47, 7, 2854-2859, https://doi.org/10.1021/jf981387g . [all data]

Shimoda, Nakada, et al., 1997
Shimoda, M.; Nakada, Y.; Nakashima, M.; Osajima, Y., Quantitative comparison of volatile flavor compounds in deep-roasted and light-roasted sesame seed oil, J. Agric. Food Chem., 1997, 45, 8, 3193-3196, https://doi.org/10.1021/jf970172o . [all data]

Shimoda, Shiratsuchi, et al., 1996
Shimoda, M.; Shiratsuchi, H.; Nakada, Y.; Wu, Y.; Osajima, Y., Identification and sensory characterization of volatile flavor compounds in sesame seed oil, J. Agric. Food Chem., 1996, 44, 12, 3909-3912, https://doi.org/10.1021/jf960115f . [all data]

Bianchi, Careri, et al., 2007
Bianchi, F.; Careri, M.; Mangia, A.; Musci, M., Retention indices in the analysis of food aroma volatile compounds in temperature-programmed gas chromatography: Database creation and evaluation of precision and robustness, J. Sep. Sci., 2007, 39, 4, 563-572, https://doi.org/10.1002/jssc.200600393 . [all data]

Majcher and Jelen, 2007
Majcher, M.A.; Jelen, H.H., Effect of Cysteine and Cystine Addition on Sensory Profile and Potent Odorants of Extruded Potato Snacks, J. Agric. Food Chem., 2007, 55, 14, 5754-5760, https://doi.org/10.1021/jf0703147 . [all data]

Frauendorfer and Schieberle, 2006
Frauendorfer, F.; Schieberle, P., Identification of the key aroma compounds in Cocoa powder based on molecular sensoly correlations, J. Agr. Food Chem., 2006, 54, 15, 5521-5529, https://doi.org/10.1021/jf060728k . [all data]

Majcher and Jelén, 2005
Majcher, M.A.; Jelén, H.H., Identification of potent odorants formed during the preparation of extruded potato snacks, J. Agric. Food Chem., 2005, 53, 16, 6432-6437, https://doi.org/10.1021/jf050412x . [all data]

Amrani-Hemaimi, Cerny, et al., 1995
Amrani-Hemaimi, M.; Cerny, C.; Fay, L.B., Mechanisms of formation of alkylpyrazines in the Maillard reaction, J. Agric. Food Chem., 1995, 43, 11, 2818-2822, https://doi.org/10.1021/jf00059a009 . [all data]

Shedid, 2010
Shedid, S., Chemical composition and antioxidant activity of Mallard reaction products generated from glutathione or Cysteine/glucose, World Appl. Sci. J., 2010, 9, 10, 1148-1154. [all data]

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]

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]

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]

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]

Boylston and Viniyard, 1998
Boylston, T.D.; Viniyard, B.T., Isolation of volatile flavor compounds from peanut butter using purge-and-trap technique in Instrumental Methods in Food and Beverage Analysis, D. Wetzel and G. Charalambous, ed(s)., 1998, 225-243. [all data]

Schieberle, 1991
Schieberle, P., Primary odorants in popcorn, J. Agric. Food Chem., 1991, 39, 6, 1141-1144, https://doi.org/10.1021/jf00006a030 . [all data]

Mihara and Masuda, 1987
Mihara, S.; Masuda, H., Correlation between molecular structures and retention indices of pyrazines, J. Chromatogr., 1987, 402, 309-317, https://doi.org/10.1016/0021-9673(87)80029-8 . [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]

Mihara and Enomoto, 1985
Mihara, S.; Enomoto, N., Calculation of retention indices of pyrazines on the basis of molecular structure, J. Chromatogr., 1985, 324, 428-430, https://doi.org/10.1016/S0021-9673(01)81342-X . [all data]

Yu and Zhang, 2010
Yu, A.-N.; Zhang, A.-D., The effect of pH on the total formation of aroma compounds produced by hearting a model system containing L-ascorbic acid with L-threonine/L-serine, Food Chem., 2010, 119, 1, 214-219, https://doi.org/10.1016/j.foodchem.2009.06.026 . [all data]

Wan Aida, Ho, et al., 2008
Wan Aida, W.M.; Ho, C.W.; Maskat, M.Y.; Osman, H., Relating descriptive sensory analysis to gas chromatography / mass spectrometry of palm sugars using partial least squares regression, ASEAN Food J., 2008, 15, 1, 35-45. [all data]

Ho, Wan Aida, et al., 2007
Ho, C.W.; Wan Aida, W.M.; Maskat, M.Y.; Osman, H., Changes in volatile compounds of palm sap (Arenga pinnata) during the heating process for production of palm sugar, Food Chem., 2007, 102, 4, 1156-1162, https://doi.org/10.1016/j.foodchem.2006.07.004 . [all data]

Machiels, Istasse, et al., 2004
Machiels, D.; Istasse, L.; van Ruth, S.M., Gas chromatography-olfactometry analysis of beef meat originating from differently fed Belgian Blue, Limousin and Aberdeen Angus bulls, Food Chem., 2004, 86, 3, 377-383, https://doi.org/10.1016/j.foodchem.2003.09.011 . [all data]

Machiels and Istasse, 2003
Machiels, D.; Istasse, L., Evaluation of two commercial solid-phase microextraction fibres for the analysis of target aroma compounds in cooked beef meat, Talanta, 2003, 61, 4, 529-537, https://doi.org/10.1016/S0039-9140(03)00319-9 . [all data]

Counet, Callemien, et al., 2002
Counet, C.; Callemien, D.; Ouwerx, C.; Collin, S., Use of gas chromatography-olfactometry to identify key odorant compounds in dark chocolate. Comparison of samples before and after conching, J. Agric. Food Chem., 2002, 50, 8, 2385-2391, https://doi.org/10.1021/jf0114177 . [all data]

Matsui, Guth, et al., 1998
Matsui, T.; Guth, H.; Grosch, W., A comparative study of potent odorants in peanut, hazelnut, and pumpkin seed oils on the basis of aroma extract dilution analysis (AEDA) and gas chromatography-olfactometry of headspace samples (GCOH), Lipid - Fett, 1998, 100, 2, 51-56, https://doi.org/10.1002/(SICI)1521-4133(199802)100:2<51::AID-LIPI51>3.0.CO;2-W . [all data]

Zehentbauer and Grosch, 1998
Zehentbauer, G.; Grosch, W., Crust aroma of baguettes. I. Key odorants of baguettes prepared in two different ways, J. Cereal Science, 1998, 28, 1, 81-92, https://doi.org/10.1006/jcrs.1998.0184 . [all data]

Schermann and Schieberle, 1997
Schermann, P.; Schieberle, P., Evaluation of key odorants in milk chocolate and cocoa mass by aroma extract dilution analyses, J. Agric. Food Chem., 1997, 45, 3, 867-872, https://doi.org/10.1021/jf960670h . [all data]

Schieberle, 1996
Schieberle, P., Odour-active compounds in moderately roasted sesame, Food Chem., 1996, 55, 2, 145-152, https://doi.org/10.1016/0308-8146(95)00095-X . [all data]

Guth and Grosch, 1994
Guth, H.; Grosch, W., Identification of the character impact odorants of stewed beef juice by instrumental analyses and sensory studies, J. Agric. Food Chem., 1994, 42, 12, 2862-2866, https://doi.org/10.1021/jf00048a039 . [all data]

Schieberle and Grosch, 1994
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Blank, Sen, et al., 1992
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Kumazawa, Sakai, et al., 2010
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Kumazawa, Kubota, et al., 2005
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Ishikawa, Ito, et al., 2004
Ishikawa, M.; Ito, O.; Ishizaki, S.; Kurobayashi, Y.; Fujita, A., Solid-phase aroma concentrate extraction (SPACE ): a new headspace technique for more sensitive analysis of volatiles, Flavour Fragr. J., 2004, 19, 3, 183-187, https://doi.org/10.1002/ffj.1322 . [all data]

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]

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]

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]

Frauendorfer and Schieberle, 2008
Frauendorfer, F.; Schieberle, P., Changes in key aroma compounds of criollo cocoa beans during roasting, J. Agric. Food Chem., 2008, 56, 21, 10244-10251, https://doi.org/10.1021/jf802098f . [all data]

Viegas and Bassoli, 2007
Viegas, M.C.; Bassoli, D.G., Utilizacao do indice de retencao linear para caracterizacao de compostos volateis em cafe soluvel utilizando GC-MS e coluna HP-Innowax, Quim. Nova, 2007, 30, 8, 2031-2034, https://doi.org/10.1590/S0100-40422007000800040 . [all data]

Ito and Mori, 2004
Ito, K.; Mori, M., Formation of pyrazines in aqueous maltose/glucose/fructose-glutamide model systems upon heating at below 100 0C, Food Sci. Technol. Res., 2004, 10, 2, 199-204, https://doi.org/10.3136/fstr.10.199 . [all data]

Mayer and Grosch, 2001
Mayer, F.; Grosch, W., Aroma simulation on the basis of the odourant composition of roasted coffee headspace, Flavour Fragr. J., 2001, 16, 3, 180-190, https://doi.org/10.1002/ffj.975 . [all data]

Notes

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