Pyrazine, 2-methoxy-3-methyl-

Formula: C₆H₈N₂O
Molecular weight: 124.1405
IUPAC Standard InChI: InChI=1S/C6H8N2O/c1-5-6(9-2)8-4-3-7-5/h3-4H,1-2H3
IUPAC Standard InChIKey: VKJIAEQRKBQLLA-UHFFFAOYSA-N
CAS Registry Number: 2847-30-5
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-Methoxy-3-methylpyrazine; 2-Methyl-3-methoxypyrazine; Methoxymethylpyrazine; Pyrazine, 2-methyl-3-methoxy
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Other data available:
- IR Spectrum
- Mass spectrum (electron ionization)
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Gas Chromatography

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Normal alkane RI, non-polar column, temperature ramp

Column type	Active phase	I	Reference	Comment
Capillary	OV-101	954.	Mihara and Masuda, 1988	2. K/min; Column length: 50. m; Column diameter: 0.22 mm; T_start: 80. C; T_end: 200. C
Capillary	OV-101	954.	Mihara and Masuda, 1987	N2, 2. K/min; Column length: 50. m; Column diameter: 0.22 mm; T_start: 80. C; T_end: 200. C
Capillary	OV-101	954.	Mihara and Enomoto, 1985	N2, 2. K/min; Column length: 50. m; Column diameter: 0.22 mm; T_start: 80. C; T_end: 200. C

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

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Column type	Active phase	I	Reference	Comment
Capillary	OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc.	954.	Waggott and Davies, 1984	Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified

Normal alkane RI, polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	Carbowax 20M	1339.	Mihara and Masuda, 1988	2. K/min; Column length: 50. m; Column diameter: 0.22 mm; T_start: 80. C; T_end: 200. C
Capillary	Carbowax 20M	1339.	Mihara and Enomoto, 1985	N2, 2. K/min; Column length: 50. m; Column diameter: 0.22 mm; T_start: 80. C; T_end: 200. C

Normal alkane RI, polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	Carbowax 20M	1339.	Mihara and Masuda, 1987	Program: not specified
Capillary	Carbowax 400, Carbowax 20M, Carbowax 1540, Carbowax 4000, Superox 06, PEG 20M, etc.	1339.	Waggott and Davies, 1984	Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified

References

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Mihara and Masuda, 1988
Mihara, S.; Masuda, H., Structure-odor relationships for disubstituted pyrazines, J. Agric. Food Chem., 1988, 36, 6, 1242-1247, https://doi.org/10.1021/jf00084a029 . [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]

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]

Waggott and Davies, 1984
Waggott, A.; Davies, I.W., Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]

Notes

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Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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