Pyrazine, methoxy-

• Formula: C₅H₆N₂O
• Molecular weight: 110.1139
• IUPAC Standard InChI: InChI=1S/C5H6N2O/c1-8-5-4-6-2-3-7-5/h2-4H,1H3 Copy

  
• IUPAC Standard InChIKey: WKSXRWSOSLGSTN-UHFFFAOYSA-N Copy
• CAS Registry Number: 3149-28-8
• 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: Methoxypyrazine; 2-Methoxypyrazine
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• Information on this page:
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
  • References
  • Notes
• Other data available:
  • Phase change data
• Options:
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IR Spectrum

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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

Gas Phase Spectrum

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Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

Mass spectrum (electron ionization)

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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

Spectrum

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Additional Data

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

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.

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]

Masuda and Mihara, 1986
Masuda, H.; Mihara, S., Use of modified molecular connectivity indices to predict retention indices of monosubstituted alkyl, alkoxy, alkylthio, phenoxy and (phenylthio)pyrazines, J. Chromatogr., 1986, 366, 373-377, https://doi.org/10.1016/S0021-9673(01)93485-5 . [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]

Hartmann, 2003
Hartmann, P.J., The effect of wine matrix ingredients on 3-alkyl-2-methoxypyrazines measurements by headspace solid-phase microextraction (HS-SPME), Master's Thesis, Virginia Tech., Blacksburg, Va., 2003, 30. [all data]

Gijs, Chevanese, et al., 2002
Gijs, L.; Chevanese, F.; Jerkovic, V.; Collin, S., How low pH can intensify beta-damascenone and dimethyl trisulfide production through beer aging, J. Agric. Food Chem., 2002, 50, 20, 5612-5616, https://doi.org/10.1021/jf020563p . [all data]

Notes

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