Pentacosane, 3,7-dimethyl
- Formula: C27H56
- Molecular weight: 380.7335
- IUPAC Standard InChI: InChI=1S/C27H56/c1-5-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-23-27(4)25-22-24-26(3)6-2/h26-27H,5-25H2,1-4H3
- IUPAC Standard InChIKey: JNZLCLJYXZZJEX-UHFFFAOYSA-N
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 3,7-dimethyl-pentacosane
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Normal alkane 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 | DB-1 | OV-1 | BP-1 | BP-1 |
| Column length (m) | 30. | 40. | 25. | 25. |
| Carrier gas | Helium | Helium | ||
| Substrate | ||||
| Column diameter (mm) | 0.32 | 0.25 | 0.25 | 0.25 |
| Phase thickness (μm) | 0.25 | 0.25 | 0.25 | |
| Tstart (C) | 60. | 140. | 160. | 160. |
| Tend (C) | 320. | 300. | 300. | 300. |
| Heat rate (K/min) | 2. | 1.5 | 1.5 | |
| Initial hold (min) | ||||
| Final hold (min) | ||||
| I | 2608.5 | 2612. | 2608. | 2610. |
| Reference | Katritzky, Chen, et al., 2000 | Hebanowska, Malinski, et al., 1990 | Lockey and Dularay, 1986 | Lockey and Dularay, 1986 |
| Comment | 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.
Katritzky, Chen, et al., 2000
Katritzky, A.R.; Chen, K.; Maran, U.; Carlson, D.A.,
QSPR Correlation and predictions of GC retention indexes for methyl-branched hydrocarbons produced by insects,
Anal. Chem., 2000, 72, 1, 101-109, https://doi.org/10.1021/ac990800w
. [all data]
Hebanowska, Malinski, et al., 1990
Hebanowska, E.; Malinski, E.; Dubis, E.; Oksman, P.; Pihlaja, K.; Nawrot, J.; Szafranek, J.,
The cuticular hydrocarbons of the larvae of Anagasta kuehniella Z.,
Comp. Biochem. Physiol. B: Comp. Biochem., 1990, 95, 4, 699-703. [all data]
Lockey and Dularay, 1986
Lockey, K.H.; Dularay, B.,
Cuticular methylalkanes of adult cockroaches, Blatta orientalis and Periplaneta Americana,
Comp. Biochem. Physiol., 1986, 85B, 3, 567-572. [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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