9,12-Octadecadienoic acid, methyl ester
- Formula: C19H34O2
- Molecular weight: 294.4721
- IUPAC Standard InChI: InChI=1S/C19H34O2/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19(20)21-2/h7-8,10-11H,3-6,9,12-18H2,1-2H3
- IUPAC Standard InChIKey: WTTJVINHCBCLGX-UHFFFAOYSA-N
- CAS Registry Number: 2462-85-3
- Chemical structure:
This structure is also available as a 2d Mol file - Stereoisomers:
- Other names: 9,12-Octadecenoic acid, methyl ester; Methyl octadeca-9,12-dienoate; Methyl 9,12-octadecadienoate; 9,12-Octadecadienoic acid; Octadeca-9,12-dienoic acid
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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 | HP-5MS | HP-5MS | HP-5MS | HP-5MS | DB-5 |
| Column length (m) | 30. | 30. | 30. | 30. | 30. |
| Carrier gas | He | He | 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. | 50. | 50. | 60. | 40. |
| Tend (C) | 280. | 280. | 280. | 280. | 260. |
| Heat rate (K/min) | 5. | 5. | 5. | 3. | 2. |
| Initial hold (min) | 4. | 4. | 4. | 5. | |
| Final hold (min) | 10. | 10. | 10. | 20. | |
| I | 2101. | 2101. | 2101. | 2075. | 2094. |
| Reference | Cho, Abd El-Aty, et al., 2007 | Kim, Abd El-Aty, et al., 2006 | Kim, El-Aty, et al., 2006 | Tzakou, Said, et al., 2006 | Senatore, Apostolides Arnold, et al., 2005 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|---|
| Active phase | HP-5MS | DB-5 | SE-54 | HP-1 | HP-1 |
| Column length (m) | 30. | 30. | 25. | 30. | 30. |
| Carrier gas | He | He | He | He | |
| Substrate | |||||
| Column diameter (mm) | 0.25 | 0.32 | 0.31 | 0.25 | 0.25 |
| Phase thickness (μm) | 0.25 | 0.25 | 0.1 | 0.1 | |
| Tstart (C) | 60. | 40. | 35. | 50. | 50. |
| Tend (C) | 285. | 250. | 250. | 300. | 300. |
| Heat rate (K/min) | 4.3 | 5. | 4. | 5. | 5. |
| Initial hold (min) | 2. | 3. | 2. | 2. | |
| Final hold (min) | 10. | 3. | 3. | ||
| I | 2092. | 2075. | 2147. | 2077. | 2077. |
| Reference | Tesevic, Nikicevic, et al., 2005 | Wu, Krings, et al., 2005 | Ding, Deng, et al., 1998 | Boatright and Crum, 1997 | Boatright and Crum, 1997 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | 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.
Cho, Abd El-Aty, et al., 2007
Cho, S.-K.; Abd El-Aty, A.M.; Choi, J.-H.; Kim, M.R.; Shim, J.H.,
Optimized conditions for the extraction of secondary volatile metabolites in Angelica roots by accelerated solvent extraction,
J. Pharm. Biomed. Anal., 2007, 44, 5, 1154-1158, https://doi.org/10.1016/j.jpba.2007.03.011
. [all data]
Kim, Abd El-Aty, et al., 2006
Kim, M.R.; Abd El-Aty, A.M.; Kim, I.S.; Shim, J.H.,
Determination of volatile flavor components in danggui cultivars by solvent free injection and hydrodistillation followed by gas chromatographic-mass spectrometric analysis,
J. Chromatogr. A, 2006, 1116, 1-2, 259-264, https://doi.org/10.1016/j.chroma.2006.03.060
. [all data]
Kim, El-Aty, et al., 2006
Kim, M.R.; El-Aty, A.M.A.; Choi, J.-H.; Lee, K.B.; Shim, J.H.,
Identification of volatile components in Angelica species using supercritical-CO2 fluid extraction and solid phase microextraction coupled to gas chromatography-mass spectrometry,
Biomedical Chromatography, 2006, 20, 11, 1267-1273, https://doi.org/10.1002/bmc.696
. [all data]
Tzakou, Said, et al., 2006
Tzakou, O.; Said, A.; Farag, A.; Rashed, K.,
Volatile constituents of Ailanthus excelsa Roxb.,
Flavour Fragr. J., 2006, 21, 6, 899-901, https://doi.org/10.1002/ffj.1739
. [all data]
Senatore, Apostolides Arnold, et al., 2005
Senatore, F.; Apostolides Arnold, N.; Bruno, M.,
Volatile components of Centaurea eryngioides Lam. and Centaurea liberica Trev. var. hermonis Boiss. Lam., two Asteraceae growing wild in Lebanon,
Nat. Prod. Res., 2005, 19, 8, 749-754, https://doi.org/10.1080/14786410412331302136
. [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]
Wu, Krings, et al., 2005
Wu, S.; Krings, U.; Zorn, H.; Berger, R.G.,
Volatile compounds from the fruiting bodies of beefsteak fungus Fistulina hepatica (Schaeffer: Fr.) Fr.,
Food Chem., 2005, 92, 2, 221-226, https://doi.org/10.1016/j.foodchem.2004.07.013
. [all data]
Ding, Deng, et al., 1998
Ding, Q.; Deng, Y.; Sun, Y.; Huagn, A.; Sun, Y.,
Analysis of volatile components in ox feces by capillary gas chromatography,
Beijing Daxue Xuebao Ziran Kexueban, 1998, 34, 6, 720-725. [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]
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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