2-Ethyl-3-methoxypyrazine
- Formula: C7H10N2O
- Molecular weight: 138.1671
- IUPAC Standard InChI: InChI=1S/C7H10N2O/c1-3-6-7(10-2)9-5-4-8-6/h4-5H,3H2,1-2H3
- IUPAC Standard InChIKey: DPCILIMHENXHQX-UHFFFAOYSA-N
- CAS Registry Number: 25680-58-4
- 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-ethylpyrazine; Pyrazine, 2-ethyl-3-methoxy-; 3-Ethyl-2-methoxypyrazine; Pyrazine, 3-ethyl-2-methoxy
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- Other data available:
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Normal alkane RI, non-polar column, custom temperature program
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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
| Column type | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|
| Active phase | HP-5 | HP-5 | HP-5 | OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc. |
| Column length (m) | 30. | 30. | 30. | 50. |
| Carrier gas | He | He | Hydrogen | |
| Substrate | ||||
| Column diameter (mm) | 0.25 | 0.25 | 0.25 | 0.32 |
| Phase thickness (μm) | 0.25 | 0.25 | 0.25 | |
| Program | 50 C(1min) => 20C/min => 80C => 25C/min => 250C (3 min) | 50 C(1min) => 20C/min => 80C => 25C/min => 250C (3 min) | 40C (5min) => 10C/min => 80C => 20C/min => 230C (5min) | not specified |
| I | 1063. | 1063. | 1063. | 1037. |
| Reference | Hartmann, 2003 | Hartmann, 2003 | Hartmann, McNair, et al., 2002 | Waggott and Davies, 1984 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
References
Go To: Top, Normal alkane RI, non-polar column, custom temperature program, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Hartmann, McNair, et al., 2002
Hartmann, P.J.; McNair, H.M.; Zoecklein, B.W.,
Measurement of 3-alkyl-2-methoxypyrazine by headspace solid-phase microextraction in spiked model wines,
Am. J. Enol. Vitic, 2002, 53, 4, 285-288. [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
Go To: Top, Normal alkane RI, non-polar column, custom temperature program, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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