Pyrazine, ethyl-
- Formula: C6H8N2
- Molecular weight: 108.1411
- IUPAC Standard InChI: InChI=1S/C6H8N2/c1-2-6-5-7-3-4-8-6/h3-5H,2H2,1H3
- IUPAC Standard InChIKey: KVFIJIWMDBAGDP-UHFFFAOYSA-N
- CAS Registry Number: 13925-00-3
- 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: Ethylpyrazine; 2-Ethylpyrazine
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- Options:
Van Den Dool and Kratz RI, polar column, temperature ramp
Go To: Top, 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
| Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|---|
| Active phase | DB-Wax | DB-Wax | CP-Wax 52CB | OV-351 | DB-Wax |
| Column length (m) | 30. | 30. | 50. | 50. | 30. |
| Carrier gas | He | He | He | He | |
| Substrate | |||||
| Column diameter (mm) | 0.25 | 0.32 | 0.32 | 0.32 | 0.25 |
| Phase thickness (μm) | 0.5 | 0.5 | 0.2 | 0.5 | |
| Tstart (C) | 40. | 40. | 60. | 60. | 40. |
| Tend (C) | 250. | 240. | 220. | 220. | 230. |
| Heat rate (K/min) | 4. | 5. | 4. | 5. | 5. |
| Initial hold (min) | 5. | 5. | 2. | ||
| Final hold (min) | 15. | 10. | 30. | 10. | |
| I | 1333. | 1344. | 1324. | 1314. | 1357. |
| Reference | Pozo-Bayon M.A., Ruiz-Rodriguez A., et al., 2007 | Lopez-Galilea I., Fournier N., et al., 2006 | Mahadevan and Farmer, 2006 | Bonvehí, 2005 | Mahajan, Goddik, et al., 2004 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|---|
| Active phase | HP-Innowax | EC-WAX | DB-Wax | CP-Wax 52CB | DB-Wax |
| Column length (m) | 30. | 30. | 60. | 50. | 60. |
| Carrier gas | N2 | He | He | H2 | He |
| Substrate | |||||
| Column diameter (mm) | 0.25 | 0.32 | 0.25 | 0.32 | 0.32 |
| Phase thickness (μm) | 0.25 | 0.5 | 0.25 | 0.5 | |
| Tstart (C) | 60. | 40. | 40. | 50. | 40. |
| Tend (C) | 220. | 250. | 200. | 200. | 250. |
| Heat rate (K/min) | 5. | 5. | 2. | 2. | 3. |
| Initial hold (min) | 2. | 5. | 5. | ||
| Final hold (min) | 10. | 30. | 10. | ||
| I | 1292. | 1354. | 1329. | 1319. | 1358. |
| Reference | Adamiec, Rossner, et al., 2001 | le Guen, Prost, et al., 2001 | Kim, 2001 | Liu, Yang, et al., 2001 | le Guen, Prost, et al., 2000 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|---|
| Active phase | DB-Wax | DB-Wax | Supelcowax-10 | Supelcowax-10 | PEG-20M |
| Column length (m) | 60. | 60. | 60. | 60. | 60. |
| Carrier gas | He | He | He | He | He |
| Substrate | |||||
| Column diameter (mm) | 0.32 | 0.32 | 0.25 | 0.25 | 0.25 |
| Phase thickness (μm) | 0.5 | 0.5 | 0.25 | 0.25 | 0.25 |
| Tstart (C) | 40. | 40. | 35. | 35. | 50. |
| Tend (C) | 250. | 250. | 195. | 195. | 230. |
| Heat rate (K/min) | 4. | 4. | 2. | 2. | 2. |
| Initial hold (min) | 2. | 2. | 5. | 5. | |
| Final hold (min) | 10. | 10. | 90. | 90. | 60. |
| I | 1349. | 1354. | 1336. | 1335. | 1338. |
| Reference | Le Guen, Prost, et al., 2000 | Le Guen, Prost, et al., 2000 | Chung, 1999 | Chung, 1999, 2 | Shimoda, Nakada, et al., 1997 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|---|
| Active phase | DB-Wax | DB-Wax | DB-Wax | Supelcowax-10 | CP-WAX 57CB |
| Column length (m) | 60. | 60. | 60. | 60. | 50. |
| Carrier gas | He | He | He | He | He |
| Substrate | |||||
| Column diameter (mm) | 0.25 | 0.25 | 0.25 | 0.25 | 0.24 |
| Phase thickness (μm) | 0.25 | 0.25 | 0.25 | ||
| Tstart (C) | 50. | 50. | 60. | 40. | 50. |
| Tend (C) | 230. | 230. | 220. | 195. | 210. |
| Heat rate (K/min) | 3. | 2. | 3. | 2. | 2. |
| Initial hold (min) | 4. | 5. | 5. | ||
| Final hold (min) | 60. | 30. | 40. | ||
| I | 1371. | 1338. | 1325. | 1332. | 1318. |
| Reference | Shimoda, Peralta, et al., 1996 | Shimoda, Shiratsuchi, et al., 1996 | Chung, Eiserich, et al., 1994 | Chung and Cadwallader, 1993 | Baltes and Mevissen, 1988 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary | Capillary | Capillary |
|---|---|---|---|
| Active phase | CP-WAX 57CB | CP-WAX 57CB | CP-WAX 57CB |
| Column length (m) | 50. | 50. | 50. |
| Carrier gas | He | He | |
| Substrate | |||
| Column diameter (mm) | 0.32 | 0.32 | 0.32 |
| Phase thickness (μm) | |||
| Tstart (C) | 60. | 60. | 60. |
| Tend (C) | 200. | 200. | 200. |
| Heat rate (K/min) | 4. | 4. | 4. |
| Initial hold (min) | 5. | 5. | 5. |
| Final hold (min) | 10. | 10. | |
| I | 1334. | 1334. | 1336. |
| Reference | Salter L.J., Mottram D.S., et al., 1988 | Whitfield, Mottram, et al., 1988 | Whitfield, Mottram, et al., 1988 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI |
References
Go To: Top, Van Den Dool and Kratz RI, polar column, temperature ramp, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Pozo-Bayon M.A., Ruiz-Rodriguez A., et al., 2007
Pozo-Bayon M.A.; Ruiz-Rodriguez A.; Pernin K.; Cayot N.,
Influence of eggs on the aroma composition of a sponge cake and on the aroma release in model studies on flavored sponge cakes,
J. Agric. Food Chem., 2007, 55, 4, 1418-1426, https://doi.org/10.1021/jf062203y
. [all data]
Lopez-Galilea I., Fournier N., et al., 2006
Lopez-Galilea I.; Fournier N.; Cid C.; Guichard E.,
Changes in headspace volatile concentrations of coffee brews caused by the roasting process and the brewing procedure,
J. Agric. Food Chem., 2006, 54, 22, 8560-8566, https://doi.org/10.1021/jf061178t
. [all data]
Mahadevan and Farmer, 2006
Mahadevan, K.; Farmer, L.,
Key Odor Impact Compounds in Three Yeast Extract Pastes,
J. Agric. Food Chem., 2006, 54, 19, 7242-7250, https://doi.org/10.1021/jf061102x
. [all data]
Bonvehí, 2005
Bonvehí, J.S.,
Investigation of aromatic compounds in roasted cocoa powder,
Eur. Food Res. Technol., 2005, 221, 1-2, 19-29, https://doi.org/10.1007/s00217-005-1147-y
. [all data]
Mahajan, Goddik, et al., 2004
Mahajan, S.S.; Goddik, L.; Qian, M.C.,
Aroma Compounds in Sweet Whey Powder,
J. Dairy Sci., 2004, 87, 12, 4057-4063, https://doi.org/10.3168/jds.S0022-0302(04)73547-X
. [all data]
Adamiec, Rossner, et al., 2001
Adamiec, J.; Rossner, J.; Velisek, J.; Cejpek, K.; Savel, J.,
Minor Strecker degradation products of phenylalanine and phenylglycine,
Eur. Food Res. Technol., 2001, 212, 2, 135-140, https://doi.org/10.1007/s002170000234
. [all data]
le Guen, Prost, et al., 2001
le Guen, S.; Prost, C.; Demaimay, M.,
Evaluation of the representativeness of the odor of cooked mussel extracts and the relationship between sensory descriptors and potent odorants,
J. Agric. Food Chem., 2001, 49, 3, 1321-1327, https://doi.org/10.1021/jf000781n
. [all data]
Kim, 2001
Kim, J.S.,
Einfluss der Temperatur beim Rösten von Sesam auf Aroma und antioxidative Eigenschaften des Öls, PhD Thesis, Technischen Universität Berlin zur Erlangung des akademischen Grades, Berlin, 2001, 151. [all data]
Liu, Yang, et al., 2001
Liu, T.-T.; Yang, T.-S.; Wu, C.-M.,
Changes of volatiles in soy sauce-stewed pork during cold storage and reheating,
J. Sci. Food Agric., 2001, 81, 15, 1547-1552, https://doi.org/10.1002/jsfa.978
. [all data]
le Guen, Prost, et al., 2000
le Guen, S.; Prost, C.; Demaimay, M.,
Critical comparison of three olfactometric methods for the identification of the most potent odorants in cooked mussels (Mytilus edulis),
J. Agric. Food Chem., 2000, 48, 4, 1307-1314, https://doi.org/10.1021/jf990745s
. [all data]
Le Guen, Prost, et al., 2000
Le Guen, S.; Prost, C.; Demaimay, M.,
Characterization of odorant compounds of mussels (Mytilus edulis) according to their origin using gas chromatography-olfactometry and gas chromatography-mass spectrometry,
J. Chromatogr. A, 2000, 896, 1-2, 361-371, https://doi.org/10.1016/S0021-9673(00)00729-9
. [all data]
Chung, 1999
Chung, H.Y.,
Volatile components in crabmeats of Charybdis feriatus,
J. Agric. Food Chem., 1999, 47, 6, 2280-2287, https://doi.org/10.1021/jf981027t
. [all data]
Chung, 1999, 2
Chung, H.Y.,
Volatile components in fermented soybean (Glycine max) curds,
J. Agric. Food Chem., 1999, 47, 7, 2690-2696, https://doi.org/10.1021/jf981166a
. [all data]
Shimoda, Nakada, et al., 1997
Shimoda, M.; Nakada, Y.; Nakashima, M.; Osajima, Y.,
Quantitative comparison of volatile flavor compounds in deep-roasted and light-roasted sesame seed oil,
J. Agric. Food Chem., 1997, 45, 8, 3193-3196, https://doi.org/10.1021/jf970172o
. [all data]
Shimoda, Peralta, et al., 1996
Shimoda, M.; Peralta, R.R.; Osajima, Y.,
Headspace gas analysis of fish sauce,
J. Agric. Food Chem., 1996, 44, 11, 3601-3605, https://doi.org/10.1021/jf960345u
. [all data]
Shimoda, Shiratsuchi, et al., 1996
Shimoda, M.; Shiratsuchi, H.; Nakada, Y.; Wu, Y.; Osajima, Y.,
Identification and sensory characterization of volatile flavor compounds in sesame seed oil,
J. Agric. Food Chem., 1996, 44, 12, 3909-3912, https://doi.org/10.1021/jf960115f
. [all data]
Chung, Eiserich, et al., 1994
Chung, T.Y.; Eiserich, J.P.; Shibamoto, T.,
Volatile compounds produced from peanut oil heated with different amounts of cysteine,
J. Agric. Food Chem., 1994, 42, 8, 1743-1746, https://doi.org/10.1021/jf00044a032
. [all data]
Chung and Cadwallader, 1993
Chung, H.Y.; Cadwallader, K.R.,
Volatile components in blue crab (Callinectes sapidus) meat and processing by-product,
J. Food Sci., 1993, 58, 6, 1203-1207, https://doi.org/10.1111/j.1365-2621.1993.tb06148.x
. [all data]
Baltes and Mevissen, 1988
Baltes, W.; Mevissen, L.,
Model reactions on roast aroma formation. VI. Volatile reaction products from the reaction of phenylalanine with glucose during cooking and roasting,
Z. Lebensm. Unters. Forsch., 1988, 187, 3, 209-214, https://doi.org/10.1007/BF01043341
. [all data]
Salter L.J., Mottram D.S., et al., 1988
Salter L.J.; Mottram D.S.; Whitfield,
Volatile compounds produces in Maillard reactions involving glycine, ribose and phospholid,
J. Sci. Food Agric., 1988, 46, 2, 227-242, https://doi.org/10.1002/jsfa.2740460211
. [all data]
Whitfield, Mottram, et al., 1988
Whitfield, F.B.; Mottram, D.S.; Brock, S.; Puckey, D.J.; Salter, L.J.,
Effect of Phospholipid on the Formation of Volatile Heterocyclic Compounds in Heated Aqueous Solutions of Amino Acids and Ribose,
J. Sci. Food Agric., 1988, 42, 3, 261-272, https://doi.org/10.1002/jsfa.2740420309
. [all data]
Notes
Go To: Top, Van Den Dool and Kratz RI, polar column, temperature ramp, References
- Symbols used in this document:
Tend Final temperature Tstart Initial temperature - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.