Pyridine, 5-ethyl-2-methyl-

• Formula: C₈H₁₁N
• Molecular weight: 121.1796
• IUPAC Standard InChI: InChI=1S/C8H11N/c1-3-8-5-4-7(2)9-6-8/h4-6H,3H2,1-2H3 Copy

  
• IUPAC Standard InChIKey: NTSLROIKFLNUIJ-UHFFFAOYSA-N Copy
• CAS Registry Number: 104-90-5
• 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-Picoline, 5-ethyl-; Aldehydecollidine; Aldehydine; Aldehydkollidin; MEP; 2-Methyl-5-ethylpyridine; 3-Ethyl-6-methylpyridine; 5-Ethyl-α-picoline; 5-Ethyl-2-methylpyridine; 5-Ethyl-2-picoline; 6-Methyl-3-ethylpyridine; 2,5-Aldehydine; UN 2300; Collidine, aldehydecollidine; NSC 1984; Pyridine, 2-methyl-5-ethyl
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• Information on this page:
  • Gas phase thermochemistry data
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Condensed phase thermochemistry data
  • Phase change data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • UV/Visible spectrum
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Gas phase thermochemistry data

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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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

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

Kovats' RI, non-polar column, isothermal

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Van Den Dool and Kratz RI, non-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.

Gubareva, Gerasimov, et al., 1992
Gubareva, A.I.; Gerasimov, P.A.; Tarbeyeva, N.A.; Kunderenko, V.M., Physicochemical Properties of 2-methyl-5-ethylpyridine, Khim.-Farm. Zh., 1992, 26, 40-41. [all data]

Shatts, Avots, et al., 1977
Shatts, V.D.; Avots, A.A.; Belikov, V.A., Retention indices of alkylpyridines, Zh. Anal. Khim., 1977, 32, 4, 631-638. [all data]

Gautzsch and Zinn, 1996
Gautzsch, R.; Zinn, P., Use of incremental models to estimate the retention indexes of aromatic compounds, Chromatographia, 1996, 43, 3/4, 163-176, https://doi.org/10.1007/BF02292946 . [all data]

Baltes and Bochmann, 1987
Baltes, W.; Bochmann, G., Model reactions on roast aroma formation. 1. Reaction of serine and threonine with sucrose under the conditions of coffee roasting and identification of new coffee aroma compounds, J. Agric. Food Chem., 1987, 35, 3, 340-346, https://doi.org/10.1021/jf00075a015 . [all data]

Radulovic, Blagojevic, et al., 2010
Radulovic, N.; Blagojevic, P.; Palic, R., Comparative study of the leaf volatiles of Arctostaphylos uva-ursi (L.) Spreng. and Vaccinium vitis-idaea L. (Ericaceae), Molecules, 2010, 15, 9, 6168-6185, https://doi.org/10.3390/molecules15096168 . [all data]

Kubec, Drhová, et al., 1998
Kubec, R.; Drhová, V.; Velísek, J., Thermal degradation of S-methylcysteine and its sulfoxide-important flavor precursors of Bassica and Allium vegetables, J. Agric. Food Chem., 1998, 46, 10, 4334-4340, https://doi.org/10.1021/jf980379x . [all data]

Ishihara, Tsuneya, et al., 1992
Ishihara, M.; Tsuneya, T.; Shiga, M.; Kawashima, S.; Yamagishi, K.; Yoshida, F.; Sato, H.; Uneyama, K., New pyridine derivatives and basic components in spearmint oil (Mentha gentilis f. cardiaca) and peppermint oil (Mentha piperita), J. Agric. Food Chem., 1992, 40, 9, 1647-1655, https://doi.org/10.1021/jf00021a034 . [all data]

Li, Gao, et al., 2000
Li, R.; Gao, S.-G.; Xiang, B.-R., Using improved BP neural network in predicting GC retention indices, Computers appl. chem. (Chinese), 2000, 17, 1-2, 113-114. [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]

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]

Baltes and Bochmann, 1987, 2
Baltes, W.; Bochmann, G., Model reactions on roast aroma formations, V. Mass spectrometric identification of pyrifines, oxazoles, and carbocyclic compounds from the reaction of serine and threonine with sucrose under the conditions of coffee roasting, Z. Lebensm. Unters. Forsch., 1987, 185, 1, 5-9, https://doi.org/10.1007/BF01083331 . [all data]

Notes

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• Symbols used in this document:
  

  ΔfH°gas

  Enthalpy of formation of gas at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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