Pyrazine, 2,5-dimethyl-3-propyl-
- Formula: C9H14N2
- Molecular weight: 150.2209
- IUPAC Standard InChI: InChI=1S/C9H14N2/c1-4-5-9-8(3)10-6-7(2)11-9/h6H,4-5H2,1-3H3
- IUPAC Standard InChIKey: ARRSOXMGLBJPNV-UHFFFAOYSA-N
- CAS Registry Number: 18433-97-1
- 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-Propyl-3,6-dimethylpyrazine; 2,5-Dimethyl-3-propylpyrazine; 3,6-Dimethyl-2-propylpyrazine; 2,5-Dimethyl-3-pyropylpyrazine
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Mass spectrum (electron ionization)
Go To: Top, Gas Chromatography, References, Notes
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
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| Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
|---|---|
| NIST MS number | 4658 |
Gas Chromatography
Go To: Top, Mass spectrum (electron ionization), References, Notes
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
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-5 | 1131. | Solina, Baumgartner, et al., 2005 | 25. m/0.2 mm/1. μm, He, 5. K/min, 280. C @ 5. min; Tstart: 40. C |
| Capillary | HP-5 | 1131. | Solina, Baumgartner, et al., 2005 | 25. m/0.2 mm/1. μm, He, 5. K/min, 280. C @ 5. min; Tstart: 40. C |
| Capillary | HP-1 | 1141. | Zhang, Dorjpalam, et al., 1992 | 50. m/0.32 mm/1.5 μm, 2. K/min, 220. C @ 30. min; Tstart: 40. C |
| Capillary | SE-30 | 1163. | Misharina, Golovnya, et al., 1991 | 50. m/0.32 mm/0.25 μm, 4. K/min; Tstart: 50. C; Tend: 240. C |
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-5 | 1162. | Boylston and Viniyard, 1998 | 50. m/0.32 mm/0.52 μm, 35. C @ 15. min, 2. K/min, 250. C @ 45. min |
| Capillary | OV-101 | 1142. | Mihara and Masuda, 1987 | N2, 2. K/min; Column length: 50. m; Column diameter: 0.22 mm; Tstart: 80. C; Tend: 200. C |
Normal alkane RI, polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-Wax | 1525. | Chyau and Mau, 2001 | 60. m/0.32 mm/0.25 μm, 50. C @ 5. min, 1.5 K/min, 210. C @ 10. min |
| Capillary | CP-Wax 52CB | 1525. | Chyau, Lin, et al., 1997 | 50. m/0.32 mm/0.25 μm, He, 50. C @ 5. min, 1.5 K/min, 210. C @ 10. min |
Normal alkane RI, polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | Carbowax 20M | 1474. | Mihara and Masuda, 1987 | Program: not specified |
References
Go To: Top, Mass spectrum (electron ionization), Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Solina, Baumgartner, et al., 2005
Solina, M.; Baumgartner, P.; Johnson, R.L.; Whitfield, F.B.,
Volatile aroma components of soy protein isolate and acid-hydrolysed vegetable protein,
Food Chem., 2005, 90, 4, 861-873, https://doi.org/10.1016/j.foodchem.2004.06.005
. [all data]
Zhang, Dorjpalam, et al., 1992
Zhang, Y.; Dorjpalam, B.; Ho, C.-T.,
Contribution of peptides to volatile formation in the Maillard reaction of casein hydrolysate with glucose,
J. Agric. Food Chem., 1992, 40, 12, 2467-2471, https://doi.org/10.1021/jf00024a026
. [all data]
Misharina, Golovnya, et al., 1991
Misharina, T.A.; Golovnya, R.V.; Yakovleva, V.N.; Vitt, S.V.,
Pyrazines formed in model glycerin-water systems,
Russ. Chem. Bull. (Engl. Transl.), 1991, 40, 9, 1742-1748, https://doi.org/10.1007/BF00960396
. [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]
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]
Chyau and Mau, 2001
Chyau, C.-C.; Mau, J.-L.,
Effects of various oils on volatile compounds of deep-fried shallot flavouring,
Food Chem., 2001, 74, 1, 41-46, https://doi.org/10.1016/S0308-8146(00)00336-8
. [all data]
Chyau, Lin, et al., 1997
Chyau, C.-C.; Lin, Y.-C.; Mau, J.-L.,
Storage stability of deep-fried shallot flavoring,
J. Agric. Food Chem., 1997, 45, 8, 3211-3215, https://doi.org/10.1021/jf970109z
. [all data]
Notes
Go To: Top, Mass spectrum (electron ionization), Gas Chromatography, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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