Pyrazine, 3,5-diethyl-2-methyl-
- Formula: C9H14N2
- Molecular weight: 150.2209
- IUPAC Standard InChI: InChI=1S/C9H14N2/c1-4-8-6-10-7(3)9(5-2)11-8/h6H,4-5H2,1-3H3
- IUPAC Standard InChIKey: MRWLZECVHMHMGI-UHFFFAOYSA-N
- CAS Registry Number: 18138-05-1
- 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-Methyl-3,5-diethylpyrazine; 2,6-Diethyl-3-methylpyrazine; 2,6-Diethyl-5-methylpyrazine; 3,5-Diethyl-2-methylpyrazine
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
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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
View image of digitized spectrum (can be printed in landscape orientation).
Due to licensing restrictions, this spectrum cannot be downloaded.
| 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 | 4659 |
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 | 1126. | 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 | 1126. | Solina, Baumgartner, et al., 2005 | 25. m/0.2 mm/1. μm, He, 5. K/min, 280. C @ 5. min; Tstart: 40. C |
| Capillary | BPX-5 | 1165. | Ames, Guy, et al., 2001 | 50. m/0.32 mm/0.5 μm, He, 60. C @ 5. min, 4. K/min, 250. C @ 10. min |
| Capillary | BPX-5 | 1173. | Ames, Guy, et al., 2001, 2 | 50. m/0.32 mm/0.25 μm, He, 60. C @ 5. min, 4. K/min, 250. C @ 10. min |
| Capillary | BPX-5 | 1172. | Ames, Guy, et al., 2001, 2 | 50. m/0.32 mm/0.25 μm, He, 60. C @ 5. min, 4. K/min, 250. C @ 10. min |
| Capillary | DB-5MS | 1150. | Baek, Kim, et al., 2001 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 5. min, 3. K/min, 200. C @ 60. min |
| Capillary | DB-1 | 1138. | Kim, 2001 | 60. m/0.32 mm/1. μm, He, 40. C @ 5. min, 2. K/min; Tend: 220. C |
| Capillary | BPX-5 | 1161. | Oruna-Concha, Duckham, et al., 2001 | 50. m/0.32 mm/0.25 μm, He, 35. C @ 3. min, 4. K/min, 250. C @ 10. min |
| Capillary | DB-5 | 1156. | Moio and Addeo, 1998 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 210. C |
| Capillary | DB-5 | 1156. | Moio and Addeo, 1998 | 30. m/0.32 mm/1. μm, H2, 3. K/min; Tstart: 40. C; Tend: 210. C |
| Capillary | BPX-5 | 1163. | Ames, Defaye, et al., 1997 | 50. m/0.325 mm/0.5 μm, He, 50. C @ 2. min, 4. K/min, 250. C @ 10. min |
| Capillary | DB-1 | 1145. | Yu, Lin, et al., 1994 | 60. m/0.25 mm/1.0 μm, He, 40. C @ 5. min, 2. K/min, 260. C @ 60. min |
| Capillary | HP-1 | 1135. | Zhang, Dorjpalam, et al., 1992 | 50. m/0.32 mm/1.5 μm, 2. K/min, 220. C @ 30. min; Tstart: 40. C |
| Capillary | DB-1 | 1138. | Izzo and Ho, 1991 | 50. m/0.32 mm/1.05 μm, He, 2. K/min, 260. C @ 40. min; Tstart: 40. C |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | SPB-5 | 1185. | Majcher and Jelen, 2007 | 30. m/0.53 mm/1.5 μm; Program: 40C(1min) => 6C/min => 180C => 20C/min => 280C |
| Capillary | DB-5 | 1166. | Parker, Hassell, et al., 2000 | 50. m/0.32 mm/0.5 μm, He; Program: oC(5min) => 60C/min => 60C (5min) => 4C/min => 250C |
| Capillary | BPX-5 | 1167. | Owens J.D., Allagheny N., et al., 1997 | 50. m/0.32 mm/0.5 μm, He; Program: OC => 60C/min => 60C(5min) => 4C/min => 250C(20min) |
Van Den Dool and Kratz RI, polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-Wax | 1497. | Pozo-Bayon M.A., Ruiz-Rodriguez A., et al., 2007 | 30. m/0.25 mm/0.5 μm, He, 40. C @ 5. min, 4. K/min, 250. C @ 15. min |
| Capillary | DB-Wax | 1503. | Lopez-Galilea I., Fournier N., et al., 2006 | 30. m/0.32 mm/0.5 μm, He, 5. K/min, 240. C @ 10. min; Tstart: 40. C |
| Capillary | DB-Wax | 1503. | Lopez-Galilea I., Fournier N., et al., 2006 | 30. m/0.32 mm/0.5 μm, He, 5. K/min, 240. C @ 10. min; Tstart: 40. C |
| Capillary | DB-Wax | 1492. | Kim, 2001 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 5. min, 2. K/min, 200. C @ 30. min |
| Capillary | PEG-20M | 1496. | Shimoda, Nakada, et al., 1997 | 60. m/0.25 mm/0.25 μm, He, 2. K/min, 230. C @ 60. min; Tstart: 50. C |
| Capillary | DB-Wax | 1496. | Shimoda, Shiratsuchi, et al., 1996 | 60. m/0.25 mm/0.25 μm, He, 2. K/min, 230. C @ 60. min; Tstart: 50. C |
| Capillary | CP-WAX 57CB | 1496. | Salter L.J., Mottram D.S., et al., 1988 | 60. C @ 5. min, 4. K/min; Column length: 50. m; Column diameter: 0.32 mm; Tend: 200. C |
| Capillary | CP-WAX 57CB | 1496. | Whitfield, Mottram, et al., 1988 | He, 60. C @ 5. min, 4. K/min, 200. C @ 10. min; Column length: 50. m; Column diameter: 0.32 mm |
Van Den Dool and Kratz RI, polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | Supelcowax-10 | 1474. | Majcher and Jelen, 2007 | 30. m/0.25 mm/0.25 μm; Program: 40C(2min) => 40C/min => 60C(2min) => 5C/min => 240C |
| Capillary | DB-Wax | 1505. | Amrani-Hemaimi, Cerny, et al., 1995 | 30. m/0.32 mm/0.25 μm, He; Program: 35C(2min) => 6C/min => 150C => 30C/min => 240C(1min) |
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | Ultra-1 | 1133. | Du, Clery, et al., 2008 | 50. m/0.20 mm/0.33 μm, Helium, 2. K/min, 280. C @ 20. min; Tstart: 50. C |
| Capillary | HP-5 | 1159. | Du, Clery, et al., 2008 | 50. m/0.20 mm/0.33 μm, Helium, 10. K/min, 280. C @ 8.5 min; Tstart: 50. C |
| Capillary | SLB-5MS | 1163. | Risticevic, Carasek, et al., 2008 | 10. m/0.18 mm/0.18 μm, Helium, 40. C @ 1.5 min, 10. K/min; Tend: 295. C |
| Capillary | DB-5 | 1166. | Fadel, Mageed, et al., 2006 | He, 60. C @ 5. min, 4. K/min; Column length: 60. m; Column diameter: 0.32 mm; Tend: 250. C |
| Capillary | DB-5 | 1167. | Fadel, Mageed, et al., 2006, 2 | He, 50. C @ 5. min, 4. K/min; Column length: 60. m; Column diameter: 0.32 mm; Tend: 250. C |
| Capillary | DB-5 MS | 1184. | Schirack, Drake, et al., 2006 | 30. m/0.25 mm/0.25 μm, 40. C @ 3. min, 8. K/min, 200. C @ 20. min |
| Capillary | MDN-5 | 1157. | van Loon, Linssen, et al., 2005 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 4. min, 4. K/min, 270. C @ 5. min |
| Capillary | MDN-5 | 1155. | van Loon, Linssen, et al., 2005 | 60. m/0.25 mm/0.25 μm, He, 40. C @ 4. min, 4. K/min, 270. C @ 5. min |
| Capillary | DB-5MS | 1163. | Welty, Marshall, et al., 2001 | He, 40. C @ 5. min, 5. K/min, 220. C @ 5. min; Column length: 50. m; Column diameter: 0.25 mm |
| Capillary | HP-5 | 1159. | Boylston and Viniyard, 1998 | 50. m/0.32 mm/0.52 μm, 35. C @ 15. min, 2. K/min, 250. C @ 45. min |
| Capillary | DB-1 | 1152. | Yu and Ho, 1995 | 60. m/0.25 mm/1. μm, He, 40. C @ 5. min, 2. K/min, 260. C @ 60. min |
| Capillary | DB-1 | 1153. | Yu, Wu, et al., 1994 | 60. m/0.25 mm/1.0 μm, He, 40. C @ 5. min, 2. K/min, 260. C @ 60. min |
| Capillary | OV-1 | 1133. | Wu, Liou, et al., 1987 | Hydrogen, 1. K/min, 200. C @ 35. min; Column length: 50. m; Column diameter: 0.20 mm; Tstart: 50. C |
Normal alkane RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | DB-5 | 1148. | Yu and Zhang, 2010 | 30. m/0.25 mm/0.25 μm; Program: 40 0C (5 min) 5 0C/min -> 260 0C 15 0C/min -> 280 0C (1 min) |
| Capillary | HP-5 MS | 1162. | Wan Aida, Ho, et al., 2008 | 30. m/0.25 mm/0.25 μm, Helium; Program: 50 0C (2 min) 20 0C/min -> 80 0C (1 min) 20 0C -> 100 0C (1 min) 30 0C/min -> 230 0C (2 min) |
| Capillary | HP-5 | 1159. | Characterization of Pyrazines in Some Chinese Liquors and Their Approximate Concentrations, 2007 | 30. m/0.25 mm/0.25 μm, He; Program: 50C(2min) => 2C/min => 140C => 10C/min => 280C (10min) |
| Capillary | HP-5MS | 1162. | Ho, Wan Aida, et al., 2007 | 30. m/0.25 mm/0.25 μm, He; Program: 50C(2min) => 20C/min => 80C (1min) => 20C/min => 100C(1min) => 30C/min => 230C(3min) |
| Capillary | CP Sil 5 CB | 1138. | Counet, Ouwerx, et al., 2004 | 50. m/0.32 mm/1.2 μm; Program: 36C => 20C/min => 85C => 1C/min => 145C => 3C/min => 250C(30min) |
| Capillary | DB-5 | 1160. | Qian and Reineccius, 2003 | 30. m/0.32 mm/1. μm; Program: 35C(4min) => 2C/min => 130C => 4C/min => 250C |
| Capillary | CP Sil 5 CB | 1137. | Counet, Callemien, et al., 2002 | 50. m/0.32 mm/1.2 μm; Program: 36C => 20C/min => 85C => 1C/min => 145C=3C/min => 250C(30min) |
| Capillary | CP Sil 5 CB | 1139. | Counet, Callemien, et al., 2002 | 50. m/0.32 mm/1.2 μm; Program: 36C => 20C/min => 85C => 1C/min => 145C=3C/min => 250C(30min) |
Normal alkane RI, polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-Innowax | 1466. | Puvipirom and Chaisei, 2012 | 15. m/0.32 mm/0.50 μm, Helium, 3. K/min; Tstart: 40. C; Tend: 250. C |
| Capillary | FFAP | 1509. | Budryn, Nebesny, et al., 2011 | 30. m/0.32 mm/0.50 μm, Nitrogen, 35. C @ 5. min, 4. K/min, 250. C @ 45. min |
| Capillary | HP-Innowax | 1481. | Du, Clery, et al., 2008 | 50. m/0.20 mm/0.33 μm, Helium, 10. K/min, 250. C @ 6. min; Tstart: 50. C |
| Capillary | DB-Wax | 1469. | Characterization of Pyrazines in Some Chinese Liquors and Their Approximate Concentrations, 2007 | 30. m/0.25 mm/0.25 μm, He, 4. K/min, 230. C @ 15. min; Tstart: 50. C |
| Capillary | FFAP | 1509. | Nebesny, Budryn, et al., 2007 | 30. m/0.32 mm/0.5 μm, N2, 35. C @ 5. min, 4. K/min, 320. C @ 45. min |
| Capillary | TC-Wax | 1501. | Ishizaki, Tachihara, et al., 2005 | 60. m/0.25 mm/0.25 μm, N2, 3. K/min, 220. C @ 40. min; Tstart: 70. C |
| Capillary | HP-Wax | 1524. | Sanz, Ansorena, et al., 2001 | 60. m/0.25 mm/0.5 μm, He, 40. C @ 6. min, 3. K/min; Tend: 190. C |
| Capillary | Carbowax 20M | 1491. | Wu, Liou, et al., 1987 | Hydrogen, 1. K/min, 200. C @ 35. min; Column length: 50. m; Column diameter: 0.20 mm; Tstart: 50. C |
Normal alkane RI, polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | TC-Wax | 1501. | Kraft and Switt, 2005 | Program: not specified |
| Capillary | TC-Wax | 1501. | Tachihara, Ishizaki, et al., 2004 | 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.
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Qian and Reineccius, 2003
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Potent aroma compounds in Parmigiano Reggiano cheese studied using a dynamic headspace (purge-trap) method,
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Use of gas chromatography-olfactometry to identify key odorant compounds in dark chocolate. Comparison of samples before and after conching,
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Puvipirom and Chaisei, 2012
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Contribution of roasted grains and seeds in aroma of oleang (Thai coffee drink),
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HS-SPME/GC/MS Profiles of convectively and microwave roasted Ivory Coast Robusta coffee brews,
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Nebesny, Budryn, et al., 2007
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Notes
Go To: Top, Mass spectrum (electron ionization), Gas Chromatography, References
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