Thiazole, 4-ethyl-2,5-dimethyl-
- Formula: C7H11NS
- Molecular weight: 141.234
- IUPAC Standard InChIKey: ZJGXJKFDKNNBTK-UHFFFAOYSA-N
- CAS Registry Number: 32272-57-4
- 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: 2,5-Dimethyl-4-ethylthiazole; 4-Ethyl-2,5-dimethylthiazole
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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
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | OV-101 | 110. | 1072. | Golovnya, Zhuravleva, et al., 1991 | 50. m/0.30 mm/0.4 μm, He |
Kovats' RI, polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | PEG-40M | 110. | 1438. | Golovnya, Zhuravleva, et al., 1991 | 50. m/0.30 mm/0.4 μm, He |
Van Den Dool and Kratz RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | BPX-5 | 1077. | Bredie, Mottram, et al., 2002 | 50. m/0.32 mm/0.5 μm, 60. C @ 5. min, 4. K/min, 250. C @ 20. min |
Capillary | BPX-5 | 1086. | 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 | DB-5 | 1074. | Madruga and Mottram, 1998 | 30. m/0.32 mm/1. μm, 60. C @ 5. min, 4. K/min, 250. C @ 20. min |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 1066. | Mottram and Whitfield, 1995 | He; Column length: 50. m; Column diameter: 0.32 mm; Program: 0C => 60C/min => 60C (5min) => 4C/min => 250C |
Van Den Dool and Kratz RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | CP-Wax 52CB | 1398. | Mahadevan and Farmer, 2006 | 60. C @ 5. min, 4. K/min, 220. C @ 30. min; Column length: 50. m; Column diameter: 0.32 mm |
Normal alkane RI, non-polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | DB-5 | 1076. | Shedid, 2010 | 30. m/0.25 mm/0.25 μm, Helium, 4. K/min; Tstart: 50. C; Tend: 220. C |
Capillary | Ultra-1 | 1043. | 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 | 1065. | 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 | Methyl Silicone | 1037. | Lorenz, Stern, et al., 1983 | 4. K/min, 200. C @ 15. min; Column length: 25. m; Column diameter: 0.2 mm; Tstart: 50. C |
Capillary | Methyl Silicone | 1038. | Lorenz, Stern, et al., 1983 | 4. K/min, 200. C @ 15. min; Column length: 25. m; Column diameter: 0.2 mm; Tstart: 50. C |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | SE-30 | 1050. | Vinogradov, 2004 | Program: not specified |
Normal alkane RI, polar column, temperature ramp
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | HP-Innowax | 1426. | 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 | Carbowax 20M | 1417. | Shibamoto and Russell, 1977 | 1. K/min; Column length: 100. m; Column diameter: 0.25 mm; Tstart: 70. C; Tend: 170. C |
Capillary | Carbowax 20M | 1419. | Shibamoto and Russell, 1977 | 1. K/min; Column length: 100. m; Column diameter: 0.25 mm; Tstart: 70. C; Tend: 170. C |
Normal alkane RI, polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Capillary | Carbowax 20M | 1398. | Vinogradov, 2004 | 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.
Golovnya, Zhuravleva, et al., 1991
Golovnya, R.V.; Zhuravleva, I.L.; Yakush, E.V.; Schenderjuk, V.V.,
Retentions of alkyloxazoles and alkythiazoles and their prediction based on non-linear additivity concepts in gas chromatography,
J. Chromatogr., 1991, 552, 1-12, https://doi.org/10.1016/S0021-9673(01)95918-7
. [all data]
Bredie, Mottram, et al., 2002
Bredie, W.L.P.; Mottram, D.S.; Guy, R.C.E.,
Effect of temperature and pH on the generation of flavor volatiles in extrusion cooking of wheat flour,
J. Agric. Food Chem., 2002, 50, 5, 1118-1125, https://doi.org/10.1021/jf0111662
. [all data]
Ames, Guy, et al., 2001
Ames, J.M.; Guy, R.C.E.; Kipping, G.J.,
Effect of pH and temperature on the formation of volatile compounds in cysteine/reducing sugar/starch mixtures during extrusion cooking,
J. Agric. Food Chem., 2001, 49, 4, 1885-1894, https://doi.org/10.1021/jf0012547
. [all data]
Madruga and Mottram, 1998
Madruga, M.S.; Mottram, D.S.,
The effect of pH on the formation of volatile compounds produced by heating a model system containing 5'-imp and cysteine,
J. Braz. Chem. Soc., 1998, 9, 3, 261-271, https://doi.org/10.1590/S0103-50531998000300010
. [all data]
Mottram and Whitfield, 1995
Mottram, D.S.; Whitfield, F.B.,
Volatile compounds from the reaction of cysteine, ribose, and phospholipid in low-moisture systems,
J. Agric. Food Chem., 1995, 43, 4, 984-988, https://doi.org/10.1021/jf00052a027
. [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]
Shedid, 2010
Shedid, S.,
Chemical composition and antioxidant activity of Mallard reaction products generated from glutathione or Cysteine/glucose,
World Appl. Sci. J., 2010, 9, 10, 1148-1154. [all data]
Du, Clery, et al., 2008
Du, Z.; Clery, R.; Hammond, C.J.,
Volatile organic nitrogen-containing constituents in ambrette seed Abelmoschus moschatus Medik (Malvaceae),
J. Agric. Food Chem., 2008, 56, 16, 7388-7392, https://doi.org/10.1021/jf800958d
. [all data]
Lorenz, Stern, et al., 1983
Lorenz, G.; Stern, D.J.; Flath, R.A.; Haddon, W.F.; Tillin, S.J.; Teranishi, R.,
Identification of sheep liver volatiles,
J. Agric. Food Chem., 1983, 31, 5, 1052-1057, https://doi.org/10.1021/jf00119a033
. [all data]
Vinogradov, 2004
Vinogradov, B.A.,
Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]
Shibamoto and Russell, 1977
Shibamoto, T.; Russell, G.F.,
A study of the volatiles isolated from a D-glucose-hydrogen sulfide-ammonia model system,
J. Agric. Food Chem., 1977, 25, 1, 109-112, https://doi.org/10.1021/jf60209a054
. [all data]
Notes
Go To: Top, Gas Chromatography, References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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