Propanoic acid, 2-methyl-, ethyl ester
- Formula: C6H12O2
- Molecular weight: 116.1583
- IUPAC Standard InChIKey: WDAXFOBOLVPGLV-UHFFFAOYSA-N
- CAS Registry Number: 97-62-1
- 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: Isobutyric acid, ethyl ester; Ethyl isobutyrate; Ethyl 2-methylpropanoate; Ethyl 2-methylpropionate; Ethyl isobutanoate; Propionic acid, 2-methyl-, ethyl ester; UN 2385; Ethyl ester of 2-methyl-propanoic acid; Ethyl methylpropanoate; 2-Methylpropanoic acid ethyl ester; Ethyl 2,2-dimethylacetate; NSC 97194; Ethyl-2-methylproanoate
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Van Den Dool and Kratz RI, non-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 | SPB-5 | DB-5 | DB-5 | DB-5 | HP-5MS |
Column length (m) | 60. | 30. | 30. | 30. | 30. |
Carrier gas | N2 | He | |||
Substrate | |||||
Column diameter (mm) | 0.32 | 0.32 | 0.25 | 0.32 | 0.25 |
Phase thickness (μm) | 1. | 0.25 | 1. | 1. | 0.25 |
Tstart (C) | 40. | 40. | 50. | 40. | 60. |
Tend (C) | 230. | 240. | 290. | 230. | 250. |
Heat rate (K/min) | 3. | 6. | 10. | 4. | 4. |
Initial hold (min) | 2. | 2. | 1. | 2. | 2. |
Final hold (min) | 10. | 10. | 10. | 10. | 20. |
I | 756. | 747. | 723. | 756. | 755. |
Reference | Engel and Ratel, 2007 | Steinhaus and Schieberle, 2007 | Bylaite and Meyer, 2006 | Fang and Qian, 2005 | Pino, Mesa, et al., 2005 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|---|
Active phase | ZB-5 | CP-Sil 8CB-MS | CP-Sil 8CB-MS | DB-5 | DB-5 |
Column length (m) | 0. | 60. | 60. | 60. | 15. |
Carrier gas | He | ||||
Substrate | |||||
Column diameter (mm) | 0.32 | 0.25 | 0.25 | 0.25 | 0.32 |
Phase thickness (μm) | 0.5 | 0.25 | 0.25 | 0.25 | 0.5 |
Tstart (C) | 40. | 40. | 40. | 40. | 30. |
Tend (C) | 265. | 280. | 280. | 275. | 225. |
Heat rate (K/min) | 7. | 4. | 4. | 7. | 10. |
Initial hold (min) | 2. | 2. | 2. | ||
Final hold (min) | 5. | 5. | 5. | 20. | |
I | 756. | 756. | 774. | 762. | 765. |
Reference | Gocmen, Gurbuz, et al., 2004 | Hierro, de la Hoz, et al., 2004 | Bruna, Hierro, et al., 2003 | Valim, Rouseff, et al., 2003 | Zhou, Wintersteen, et al., 2002 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
Column type | Capillary | Capillary | Capillary | Capillary |
---|---|---|---|---|
Active phase | DB-5 | CP Sil 5 CB | HP-5 | DB-1 |
Column length (m) | 15. | 50. | 30. | 30. |
Carrier gas | He | He | He | |
Substrate | ||||
Column diameter (mm) | 0.32 | 0.32 | 0.25 | 0.32 |
Phase thickness (μm) | 0.5 | 0.4 | 0.25 | 5. |
Tstart (C) | 30. | 60. | 35. | 35. |
Tend (C) | 225. | 280. | 280. | 270. |
Heat rate (K/min) | 10. | 3. | 5.3 | 10. |
Initial hold (min) | 2. | 10. | 1. | |
Final hold (min) | 20. | 60. | 5. | |
I | 763. | 726. | 755.7 | 743. |
Reference | Zhou, Wintersteen, et al., 2002 | Pino, Marbot, et al., 2001 | Siegmund, Derler, et al., 2001 | Bartelt, 1997 |
Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
References
Go To: Top, Van Den Dool and Kratz RI, non-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.
Engel and Ratel, 2007
Engel, E.; Ratel, J.,
Correction of the data generated by mass spectrometry analyses of biological tissues: Application to food authentication,
J. Chromatogr. A, 2007, 1154, 1-2, 331-341, https://doi.org/10.1016/j.chroma.2007.02.012
. [all data]
Steinhaus and Schieberle, 2007
Steinhaus, P.; Schieberle, P.,
Characterization of the key aroma compounds in soy sauce using approaches of molecular sensory science,
J. Agric. Food Chem., 2007, 55, 15, 6262-6269, https://doi.org/10.1021/jf0709092
. [all data]
Bylaite and Meyer, 2006
Bylaite, E.; Meyer, A.S.,
· Characterisation of volatile aroma compounds of orange juices by three dynamic and static headspace gas chromatography techniques,
Eur. Food Res. Technol., 2006, 222, 1-2, 176-184, https://doi.org/10.1007/s00217-005-0141-8
. [all data]
Fang and Qian, 2005
Fang, Y.; Qian, M.,
Aroma compounds in Oregon Pinot Noir wine determined by aroma extract dilution analysis (AEDA),
Flavour Fragr. J., 2005, 20, 1, 22-29, https://doi.org/10.1002/ffj.1551
. [all data]
Pino, Mesa, et al., 2005
Pino, J.A.; Mesa, J.; Muñoz, Y.; Martí, M.P.; Marbot, R.,
Volatile components from mango (Mangifera indica L.) cultivars,
J. Agric. Food Chem., 2005, 53, 6, 2213-2223, https://doi.org/10.1021/jf0402633
. [all data]
Gocmen, Gurbuz, et al., 2004
Gocmen, D.; Gurbuz, O.; Rouseff, R.L.; Smoot, J.M.; Dagdelen, A.F.,
Gas chromatographic-olfactometric characterization of aroma active compounds in sun-dried and vacuum-dried tarhana,
Eur. Food Res. Technol., 2004, 218, 6, 573-578, https://doi.org/10.1007/s00217-004-0913-6
. [all data]
Hierro, de la Hoz, et al., 2004
Hierro, E.; de la Hoz, L.; Ordóñez, J.A.,
Headspace volatile compounds from salted and occasionally smoked dried meats (cecinas) as affected by animal species,
Food Chem., 2004, 85, 4, 649-657, https://doi.org/10.1016/j.foodchem.2003.07.001
. [all data]
Bruna, Hierro, et al., 2003
Bruna, J.M.; Hierro, E.M.; de la Hoz, L.; Mottram, D.S.; Fernández, M.; Ordóñez, J.A.,
Changes in selected biochemical and sensory parameters as affected by the superficial inoculation of Penicillium camemberti on dry fermented sausages,
Int. J. Food Microbiol., 2003, 85, 1-2, 111-125, https://doi.org/10.1016/S0168-1605(02)00505-6
. [all data]
Valim, Rouseff, et al., 2003
Valim, M.F.; Rouseff, R.L.; Lin, J.,
Gas chromatographic-olfactometric characterization of aroma compounds in two types of cashew apple nectar,
J. Agric. Food Chem., 2003, 51, 4, 1010-1015, https://doi.org/10.1021/jf025738+
. [all data]
Zhou, Wintersteen, et al., 2002
Zhou, Q.; Wintersteen, C.L.; Cadwallader, K.R.,
Identification and quantification of aroma-active components that contribute to the distinct malty flavor of buckwheat honey,
J. Agric. Food Chem., 2002, 50, 7, 2016-2021, https://doi.org/10.1021/jf011436g
. [all data]
Pino, Marbot, et al., 2001
Pino, J.A.; Marbot, R.; Vázquez, C.,
Characterization of volatiles in strawberry guava (Psidium cattleianum Sabine) fruit,
J. Agric. Food Chem., 2001, 49, 12, 5883-5887, https://doi.org/10.1021/jf010414r
. [all data]
Siegmund, Derler, et al., 2001
Siegmund, B.; Derler, K.; Pfannhauser, W.,
Changes in the aroma of a strawberry drink during storage,
J. Agric. Food Chem., 2001, 49, 7, 3244-3252, https://doi.org/10.1021/jf010116u
. [all data]
Bartelt, 1997
Bartelt, R.J.,
Calibration of a commercial solid-phase microextraction device for measuring headspace concentrations of organic volatiles,
Anal. Chem., 1997, 69, 3, 364-372, https://doi.org/10.1021/ac960820n
. [all data]
Notes
Go To: Top, Van Den Dool and Kratz RI, non-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
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