Cholestane

• Formula: C₂₇H₄₈
• Molecular weight: 372.6700
• IUPAC Standard InChI: InChI=1S/C27H48/c1-19(2)9-8-10-20(3)23-14-15-24-22-13-12-21-11-6-7-17-26(21,4)25(22)16-18-27(23,24)5/h19-25H,6-18H2,1-5H3/t20-,21-,22+,23-,24+,25?,26+,27-/m0/s1 Copy

  
• IUPAC Standard InChIKey: XIIAYQZJNBULGD-BTSBFKJRSA-N Copy
• CAS Registry Number: 481-21-0
• Chemical structure:
  This structure is also available as a 2d Mol file
• Stereoisomers:
  • cholestane
  • Cholestane, (5α,14β)-
  • Coprostane
  • 20R-5α(H),14β(H)-17β(H)-Sterane
  • 20S-5α(H),14β(H)-17β(H)-Sterane
  • C27 5A,14A,17A,20R-Sterane
  • C27 5A,14A,17A,20S-Sterane
  • C27 5A,14B,17B,20R-Sterane
• 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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• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Mass spectrum (electron ionization)
  • Gas Chromatography
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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: William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

Enthalpy of fusion

References

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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]

Notes

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• 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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