Cholestane
- Formula: C27H48
- Molecular weight: 372.6700
- IUPAC Standard InChIKey: XIIAYQZJNBULGD-BTSBFKJRSA-N
- CAS Registry Number: 481-21-0
- Chemical structure:
This structure is also available as a 2d Mol file - Stereoisomers:
- Other names: Cholestane, (5α)-; 5α-Cholestane; α-Cholestane; 28,29,30-Trinorlanostane; 10,13-Dimethyl-17-(1',5'-dimethylhexyl)-hexadecahydrocyclopenta(a)phenanthrene; 5A-Cholestane, TMS; 17-(1,5-Dimethylhexyl)-10,13-dimethyl-hexahydro-1H-cyclopenta[a]-phenanthrene (5-α-cholestane)
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Phase change data
Go To: Top, Gas Chromatography, 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: William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔsubH° | 133.8 | kJ/mol | N/A | Mokbel, Ruzicka, et al., 2000 |
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
---|---|---|---|---|
108.4 | 352. | N/A | Mokbel, Ruzicka, et al., 2000 | |
115.6 | 496. | A | Stephenson and Malanowski, 1987 | Based on data from 481. to 538. K. |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference |
---|---|---|
25.4 | 351.8 | Mokbel, Ruzicka, et al., 2000 |
Gas Chromatography
Go To: Top, Phase change data, 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
Kovats' RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | CP Sil 5 CB | 270. | 2866. | van Gelder, Jonker, et al., 1988 | 50. m/0.22 mm/0.12 μm, H2 |
Capillary | Methyl Silicone | 250. | 2857. | Shlyakhov, 1984 | |
Capillary | OV-101 | 250. | 2857. | Kimble, Maxwell, et al., 1974 | He; Column length: 23. m; Column diameter: 0.3 mm |
Kovats' RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Packed | SE-30 | 2852. | Ramsey, Lee, et al., 1980 | He, Chromosorb G HP (80-100 mesh); Column length: 1.5 m; Program: not specified |
Normal alkane RI, non-polar column, isothermal
Column type | Active phase | Temperature (C) | I | Reference | Comment |
---|---|---|---|---|---|
Capillary | OV-101 | 260. | 2856. | Halket, Ganschow, et al., 1980 | Helium; Column length: 25. m; Column diameter: 0.35 mm |
Capillary | OV-101 | 240. | 2819. | Krupcik, Rutten, et al., 1976 | Column length: 30. m; Column diameter: 0.25 mm |
Capillary | OV-101 | 251. | 2838. | Krupcik, Rutten, et al., 1976 | Column length: 30. m; Column diameter: 0.25 mm |
Normal alkane RI, non-polar column, custom temperature program
Column type | Active phase | I | Reference | Comment |
---|---|---|---|---|
Other | Methyl Silicone | 2852. | Ardrey and Moffat, 1981 | Program: not specified |
References
Go To: Top, Phase change data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Mokbel, Ruzicka, et al., 2000
Mokbel, Ilham; Ruzicka, Kvetoslav; Majer, Vladimir; Ruzicka, Vlastimil; Ribeiro, Madeleine; Jose, Jacques; Zábranský, Milan,
Vapor pressures and thermal data for three high-boiling compounds of petroleum interest: 1-phenyldodecane, (5α)-cholestane, adamantane,
Fluid Phase Equilibria, 2000, 169, 2, 191-207, https://doi.org/10.1016/S0378-3812(99)00342-8
. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
van Gelder, Jonker, et al., 1988
van Gelder, W.M.J.; Jonker, H.H.; Huizing, H.J.; Scheffer, J.J.C.,
Capillary gas chromatography of steroidal alkaloids from Solanaceae. Retention indices and simultaneous flame ionization/nitrogen-specific detection,
J. Chromatogr., 1988, 442, 133-145, https://doi.org/10.1016/S0021-9673(00)94463-7
. [all data]
Shlyakhov, 1984
Shlyakhov, A.F.,
Gas chromatography in organic geochemistry, Nedra, Moscow, 1984, 221. [all data]
Kimble, Maxwell, et al., 1974
Kimble, B.J.; Maxwell, J.R.; Philp, R.P.; Eglinton, G.,
Identification of steranes and triterpanes in geolipid extracts by high-resolution gas chromatography and mass spectrometry,
Chem. Geol., 1974, 14, 3, 173-198, https://doi.org/10.1016/0009-2541(74)90127-2
. [all data]
Ramsey, Lee, et al., 1980
Ramsey, J.D.; Lee, T.D.; Osselton, M.D.; Moffat, A.C.,
Gas-liquid chromatographic retention indices of 296 non-drug substances on SE-30 or OV-1 likely to be encountered in toxicological analyses,
J. Chromatogr., 1980, 184, 2, 185-206, https://doi.org/10.1016/S0021-9673(00)85641-1
. [all data]
Halket, Ganschow, et al., 1980
Halket, J.M.; Ganschow, I.; Lisboa, B.P.,
Gas chromatographic-mass spectrometric properties of boronate esters of 24R,25-dihydroxycholecalciferol,
J. Chromatogr., 1980, 192, 2, 434-440, https://doi.org/10.1016/S0021-9673(80)80022-7
. [all data]
Krupcik, Rutten, et al., 1976
Krupcik, J.; Rutten, G.A.F.M.; Rijks, J.A.,
The influence of temperature on the separation and characterization of steroids on non-polar glass capillary columns,
Chem. zvesti, 1976, 30, 4, 469-479. [all data]
Ardrey and Moffat, 1981
Ardrey, R.E.; Moffat, A.C.,
Gas-liquid chromatographic retention indices of 1318 substances of toxicological interest on SE-30 or OV-1 stationary phase,
J. Chromatogr., 1981, 220, 3, 195-252, https://doi.org/10.1016/S0021-9673(00)81925-1
. [all data]
Notes
Go To: Top, Phase change data, Gas Chromatography, References
- Symbols used in this document:
ΔfusH Enthalpy of fusion ΔsubH° Enthalpy of sublimation at standard conditions ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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