1H-Benzocycloheptene, 2,4a,5,6,7,8,9,9a-octahydro-3,5,5-trimethyl-9-methylene-, (4aS-cis)-
- Formula: C15H24
- Molecular weight: 204.3511
- IUPAC Standard InChI: InChI=1S/C15H24/c1-11-7-8-13-12(2)6-5-9-15(3,4)14(13)10-11/h10,13-14H,2,5-9H2,1,3-4H3
- IUPAC Standard InChIKey: ZJSIKVDEOWWVEH-UHFFFAOYSA-N
- CAS Registry Number: 3853-83-6
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 1H-Benzocycloheptene, 2,4aα,5,6,7,8,9,9aα-octahydro-3,5,5-trimethyl-9-methylene-; α-Himachalene; 1H-Benzocycloheptene, 2,4a,5,6,7,8,9,9a-octahydro-3,5,5-trimethyl-9-methylene-, cis-; (4aS,9aR)-3,5,5-Trimethyl-9-methylene-2,4a,5,6,7,8,9,9a-octahydro-1H-benzo[7]annulene; 3,5,5-Trimethyl-9-methylene-2,4a,5,6,7,8,9,9a-octahydro-1H-benzo[a]cycloheptene; (+)-α-himachalene
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Kovats' RI, non-polar column, temperature ramp
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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
| Column type | Capillary | Capillary | Capillary | Capillary |
|---|---|---|---|---|
| Active phase | CP Sil 8 CB | HP-5MS | PTE-5 | DB-5 |
| Column length (m) | 30. | 30. | 60. | 30. |
| Carrier gas | H2 | He | H2 | He |
| Substrate | ||||
| Column diameter (mm) | 0.25 | 0.25 | 0.32 | 0.25 |
| Phase thickness (μm) | 0.25 | 0.25 | 0.39 | 0.25 |
| Tstart (C) | 50. | 60. | 60. | 40. |
| Tend (C) | 220. | 280. | 285. | 250. |
| Heat rate (K/min) | 3. | 3. | 4.3 | 2. |
| Initial hold (min) | 2. | 5. | ||
| Final hold (min) | 20. | |||
| I | 1455. | 1428. | 1450. | 1427. |
| Reference | Schwob, Bessiere, et al., 2004 | Couladis, Chinou, et al., 2003 | Gudzic, Dordevic, et al., 2001 | Senatore, Urrunaga Soria, et al., 1997 |
| Comment | MSDC-RI | MSDC-RI | MSDC-RI | MSDC-RI |
References
Go To: Top, Kovats' 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.
Schwob, Bessiere, et al., 2004
Schwob, I.; Bessiere, J.-M.; Masotti, V.; Viano, J.,
Changes in essential oil composition in Saint John's wort (Hypericum perforatum L.) aerial parts during its phenological cycle,
Biochem. Syst. Ecol., 2004, 32, 8, 735-745, https://doi.org/10.1016/j.bse.2003.12.005
. [all data]
Couladis, Chinou, et al., 2003
Couladis, M.; Chinou, I.B.; Tzakou, O.; Petrakis, P.V.,
Composition and antimicrobial activity of the essential oil of Hypericum rumeliacum subsp. apollinis (Boiss. Heldr.),
Phytother. Res., 2003, 17, 2, 152-154, https://doi.org/10.1002/ptr.1093
. [all data]
Gudzic, Dordevic, et al., 2001
Gudzic, B.; Dordevic, S.; Palic, R.; Stojanovic, G.,
Essential oils of Hypericum olympicum L. and Hypericum perforatum L.,
Flavour Fragr. J., 2001, 16, 3, 201-203, https://doi.org/10.1002/ffj.978
. [all data]
Senatore, Urrunaga Soria, et al., 1997
Senatore, F.; Urrunaga Soria, E.; Urrunaga Soria, R.; Porta, G.D.; Taddeo, R.; de Feo, V.,
Essential oil of Eremocharis triradiata (Wolff.) Johnston (Apiaceae) growing wild in Perú,
Flavour Fragr. J., 1997, 12, 4, 257-259, https://doi.org/10.1002/(SICI)1099-1026(199707)12:4<257::AID-FFJ645>3.0.CO;2-4
. [all data]
Notes
Go To: Top, Kovats' 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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