Pyrazine, 2,5-dimethyl-3-propyl-
- Formula: C9H14N2
- Molecular weight: 150.2209
- 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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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
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, 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
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- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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