2,6-Octadienal, 3,7-dimethyl-, (E)-
- Formula: C10H16O
- Molecular weight: 152.2334
- IUPAC Standard InChI: InChI=1S/C10H16O/c1-9(2)5-4-6-10(3)7-8-11/h5,7-8H,4,6H2,1-3H3/b10-7+
- IUPAC Standard InChIKey: WTEVQBCEXWBHNA-JXMROGBWSA-N
- CAS Registry Number: 141-27-5
- 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. - Stereoisomers:
- Other names: α-Citral; (E)-Citral; trans-Citral; trans-3,7-Dimethyl-2,6-octadienal; Citral a; Geranaldehyde; Geranial; Citral α; (E)-3,7-Dimethyl-2,6-octadienal; (E)-3,7-Dimethylocta-2,6-dienal; trans-3,7-dimethyl-octa-2,6-dienal; (E)-Geranial; (E)-Neral; 2,6-Octadienal, 3,7-dimethyl-, (2E)-; β-Geranial; trans-3,7-dimethyl-2,6-octadienal (geranial); geranial (α-Citral); E-Citral (geranial)
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Normal alkane RI, 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 | BP-20 | BP-20 | DB-Wax | DB-Wax | DB-Wax |
| Column length (m) | 50. | 25. | 30. | 60. | |
| Carrier gas | Nitrogen | Helium | He | He | Nitrogen |
| Substrate | |||||
| Column diameter (mm) | 0.22 | 0.25 | 0.25 | 0.25 | |
| Phase thickness (μm) | 0.25 | 0.25 | 0.25 | 0.25 | |
| Tstart (C) | 60. | 60. | 100. | 50. | 70. |
| Tend (C) | 200. | 220. | 250. | 180. | 230. |
| Heat rate (K/min) | 5. | 2. | 8. | 3. | 2. |
| Initial hold (min) | 2. | ||||
| Final hold (min) | 20. | 40. | |||
| I | 1730. | 1743. | 1737. | 1721. | 1744. |
| Reference | Mishra, Chaudhary, et al., 2010 | Ottavioli, Bighelli, et al., 2009 | Lattoo, Dhar, et al., 2006 | Lee, Umano, et al., 2005 | Sawamura, Sou, et al., 2004 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
| Column type | Capillary |
|---|---|
| Active phase | DB-Wax |
| Column length (m) | 60. |
| Carrier gas | He |
| Substrate | |
| Column diameter (mm) | 0.25 |
| Phase thickness (μm) | 0.25 |
| Tstart (C) | 40. |
| Tend (C) | 200. |
| Heat rate (K/min) | 2. |
| Initial hold (min) | 2. |
| Final hold (min) | |
| I | 1726. |
| Reference | Umano, Hagi, et al., 2000 |
| Comment | MSDC-RI |
References
Go To: Top, Normal alkane RI, 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.
Mishra, Chaudhary, et al., 2010
Mishra, R.K.; Chaudhary, S.; Pandey, R.; Gupta, S.; Mallavarapu, G.R.; Kumar, S.,
Analysis of linalool content in the inflorescence (flower) essential oil and leaf oil of Lippia alba cultivar Kavach,
J. Essen. Oil Res., 2010, 22, 1, 3-7, https://doi.org/10.1080/10412905.2010.9700253
. [all data]
Ottavioli, Bighelli, et al., 2009
Ottavioli, J.; Bighelli, A.; Casanova, J.; Bang, B.T.; Y.,
GC (retention indices), GC-MS, and 13C NMR of two citral-rich Cymbopogon leaf oils: C. Flexuosus and C. tortilis,
Spectroscopy Lett., 2009, 42, 8, 506-512, https://doi.org/10.1080/00387010903022350
. [all data]
Lattoo, Dhar, et al., 2006
Lattoo, S.K.; Dhar, R.S.; Dhar, A.K.; Sharma, P.R.; Agarwal, S.G.,
Dynamics of essential oil biosynthesis in relation to inflorescence and glandular ontogeny in Salvia sclarea,
Flavour Fragr. J., 2006, 21, 5, 817-821, https://doi.org/10.1002/ffj.1733
. [all data]
Lee, Umano, et al., 2005
Lee, S.-J.; Umano, K.; Shibamoto, T.; Lee, K.-G.,
Identification of volatile components in basil (Ocimum basilicum L.) and thyme leaves (Thymus vulgaris L.) and their antioxidant properties,
Food Chem., 2005, 91, 1, 131-137, https://doi.org/10.1016/j.foodchem.2004.05.056
. [all data]
Sawamura, Sou, et al., 2004
Sawamura, M.; Sou, U.-S.; Choi, H.-S.; Kim, M.-S.; Phi, N.T.L.; Fears, M.; Kumagai. C.,
Composition changes in commercial lemon essential oil for aromatherapy,
Int. J. Aromatherapy, 2004, 14, 1, 27-36, https://doi.org/10.1016/j.ijat.2004.02.001
. [all data]
Umano, Hagi, et al., 2000
Umano, K.; Hagi, Y.; Nakahara, K.; Shoji, A.; Shibamoto, T.,
Volatile chemicals identified in extracts from leaves of Japanese mugwort (Artemisia princeps Pamp.),
J. Agric. Food Chem., 2000, 48, 8, 3463-3469, https://doi.org/10.1021/jf0001738
. [all data]
Notes
Go To: Top, Normal alkane RI, 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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