Cholesteryl stearate
- Formula: C45H80O2
- Molecular weight: 653.1155
- IUPAC Standard InChI: InChI=1S/C45H80O2/c1-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-25-43(46)47-38-30-32-44(5)37(34-38)26-27-39-41-29-28-40(36(4)24-22-23-35(2)3)45(41,6)33-31-42(39)44/h26,35-36,38-42H,7-25,27-34H2,1-6H3/t36-,38+,39+,40-,41+,42+,44+,45-/m0/s1
- IUPAC Standard InChIKey: XHRPOTDGOASDJS-LAQZWXCKSA-N
- CAS Registry Number: 35602-69-8
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 5-Cholesten-3β-ol stearate; Cholesterol stearate; Cholest-5-en-3-ol (3β)-, octadecanoate; Cholesteryl octadecanoate; Cholestryl stearate; 3β-Octadecanoyloxycholest-5-ene; cholest-5-en-3-β-yl stearate
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Phase change data
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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: Eugene S. Domalski and Elizabeth D. Hearing
Enthalpy of phase transition
| ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 67.500 | 355.4 | crystaline, I | liquid | Kishimoto, Iwasaki, et al., 1986 | |
| 1.800 | 349.0 | liquid | liquid | Kishimoto, Iwasaki, et al., 1986 | |
| 1.700 | 353.0 | liquid | liquid | Kishimoto, Iwasaki, et al., 1986 |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 189.9 | 355.4 | crystaline, I, Solid | liquid, isotropic | Kishimoto, Iwasaki, et al., 1986 | |
| 5.16 | 349.0 | liquid, Smectic | liquid, cholesteric | Kishimoto, Iwasaki, et al., 1986 | |
| 4.82 | 353.0 | liquid, Cholesteric | liquid, isotropic | Kishimoto, Iwasaki, et al., 1986 |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Kishimoto, Iwasaki, et al., 1986
Kishimoto, H.; Iwasaki, T.; Yonese, M.,
Thermodynamic and viscometric studies on the thermotropic phase-stability of cholesteryl myristate, palmitate, stearate, and oleate,
Chem. Pharm. Bull., 1986, 34, 2698-2709. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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