Octadecanoic acid, ethyl ester
- Formula: C20H40O2
- Molecular weight: 312.5304
- IUPAC Standard InChI: InChI=1S/C20H40O2/c1-3-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(21)22-4-2/h3-19H2,1-2H3
- IUPAC Standard InChIKey: MVLVMROFTAUDAG-UHFFFAOYSA-N
- CAS Registry Number: 111-61-5
- 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: Stearic acid, ethyl ester; Ethyl n-octadecanoate; Ethyl octadecanoate; Ethyl stearate; Radia 7185; Ethyl ocatadecanoate; Ethyl octadecanoate (Ethyl stearate)
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Normal alkane 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-1 | HP-5 MS | SE-30 | HP-5 | HP-5MS |
| Column length (m) | 30. | 30. | 30. | 30. | 30. |
| Carrier gas | Helium | Helium | He | He | He |
| Substrate | |||||
| Column diameter (mm) | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| Phase thickness (μm) | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| Tstart (C) | 50. | 35. | 40. | 40. | 60. |
| Tend (C) | 250. | 195. | 250. | 250. | 285. |
| Heat rate (K/min) | 5. | 2. | 5. | 5. | 4.3 |
| Initial hold (min) | 3. | 5. | 5. | 5. | |
| Final hold (min) | 15. | 30. | 10. | 10. | |
| I | 2178. | 2192. | 2197. | 2190. | 2194. |
| Reference | Lazarevic, Palic, et al., 2010 | Kim and Chung, 2009 | Loizzo, Tundis, et al., 2007 | Loizzo, Tundis, et al., 2007 | Tesevic, Nikicevic, et al., 2005 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|---|
| Active phase | DB-5 | DB-5 | DB-5 | HP-1 | HP-1 |
| Column length (m) | 30. | 30. | 30. | 30. | 30. |
| Carrier gas | He | He | He | He | He |
| Substrate | |||||
| Column diameter (mm) | 0.25 | 0.249 | 0.25 | 0.25 | 0.25 |
| Phase thickness (μm) | 0.25 | 0.25 | 0.25 | 0.1 | 0.1 |
| Tstart (C) | 40. | 60. | 60. | 50. | 50. |
| Tend (C) | 250. | 300. | 270. | 300. | 300. |
| Heat rate (K/min) | 2. | 3. | 3. | 5. | 5. |
| Initial hold (min) | 5. | 2. | 2. | ||
| Final hold (min) | 20. | 3. | 3. | ||
| I | 2188. | 2189. | 2196. | 2181. | 2181. |
| Reference | Senatore, Rigano, et al., 2004 | Woerdenbag, Windono, et al., 2004 | Palmeira, Conserva, et al., 2001 | Boatright and Crum, 1997 | Boatright and Crum, 1997 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary |
|---|---|
| Active phase | Ultra-1 |
| Column length (m) | 25. |
| Carrier gas | He |
| Substrate | |
| Column diameter (mm) | 0.32 |
| Phase thickness (μm) | 0.25 |
| Tstart (C) | 80. |
| Tend (C) | 260. |
| Heat rate (K/min) | 3. |
| Initial hold (min) | |
| Final hold (min) | |
| I | 2174. |
| Reference | Okumura, 1991 |
| Comment | MSDC-RI |
References
Go To: Top, Normal alkane 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.
Lazarevic, Palic, et al., 2010
Lazarevic, J.S.; Palic, R.V.M.; Radulovic, N.S.; Ristic, N.R.; Stojanovic, G.S.,
Chemical composition and screening of the antimicrobial and antioxidative acrivity of extracts of Stachys species,
J. Serb. Chem. Soc., 2010, 75, 10, 1347-1359, https://doi.org/10.2298/JSC100601117L
. [all data]
Kim and Chung, 2009
Kim, J.-S.; Chung, H.Y.,
GC-MS analysis of the volatile components in dried boxthorn (Lycium chimensis) Fruit,
J. Korean Soc. Appl. Biol. Chem., 2009, 52, 5, 516-524, https://doi.org/10.3839/jksabc.2009.088
. [all data]
Loizzo, Tundis, et al., 2007
Loizzo, M.R.; Tundis, R.; Conforti, F.; Saab, A.M.; Statti, G.A.; Menichini, F.,
Comparative chemical composition, antioxidant and hypoglycaemic activities of Juniperus oxycedrus ssp. oxycedrus L. berry and wood oils from Lebanon,
Food Chem., 2007, 105, 2, 572-578, https://doi.org/10.1016/j.foodchem.2007.04.015
. [all data]
Tesevic, Nikicevic, et al., 2005
Tesevic, V.; Nikicevic, N.; Jovanovic, A.; Djokovic, D.; Vujisic, L.; Vuckovic, I.; Bonic, M.,
Volatile components from old plum brandies,
Food Technol. Biotechnol., 2005, 43, 4, 367-372. [all data]
Senatore, Rigano, et al., 2004
Senatore, F.; Rigano, D.; de Fusco, R.; Bruno, M.,
Composition of the essential oil from flowerheads of Chrysanthemum coronarium L. (Asteraceae) growing wild in Southern Italy,
Flavour Fragr. J., 2004, 19, 2, 149-152, https://doi.org/10.1002/ffj.1285
. [all data]
Woerdenbag, Windono, et al., 2004
Woerdenbag, H.J.; Windono, T.; Bos, R.; Riswan, S.; Quax, W.J.,
Composition of the essential oils of Kaempferia rotunda L. and Kaempferia angustifolia Roscoe rhizomes from Indonesia,
Flavour Fragr. J., 2004, 19, 2, 145-148, https://doi.org/10.1002/ffj.1284
. [all data]
Palmeira, Conserva, et al., 2001
Palmeira, S.F., Jr.; Conserva, L.M.; Andrade, E.H.A.; Guilhon, G.M.S.P.,
Analysis by GC-MS of the hexane extract of the aerial parts of Aristolochia acutifolia Duchtr.,
Flavour Fragr. J., 2001, 16, 2, 85-88, https://doi.org/10.1002/1099-1026(200103/04)16:2<85::AID-FFJ948>3.0.CO;2-2
. [all data]
Boatright and Crum, 1997
Boatright, W.L.; Crum, A.D.,
Nonpolar-volatile lipids from soy protein isolates and hexane-defatted flakes,
J. Amer. Oil Chem. Soc., 1997, 74, 4, 461-467, https://doi.org/10.1007/s11746-997-0107-z
. [all data]
Okumura, 1991
Okumura, T.,
retention indices of environmental chemicals on methyl silicone capillary column,
Journal of Environmental Chemistry (Japan), 1991, 1, 2, 333-358, https://doi.org/10.5985/jec.1.333
. [all data]
Notes
Go To: Top, Normal alkane 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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