Ergosterol

• Formula: C₂₈H₄₄O
• Molecular weight: 396.6484
• IUPAC Standard InChI: InChI=1S/C28H44O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h7-10,18-20,22,24-26,29H,11-17H2,1-6H3/b8-7+/t19?,20?,22-,24?,25?,26?,27?,28?/m1/s1 Copy

  
• IUPAC Standard InChIKey: DNVPQKQSNYMLRS-CVGROQQCSA-N Copy
• CAS Registry Number: 57-87-4
• Chemical structure:
  This structure is also available as a 2d Mol file
• Stereoisomers:
  • 9-α-H,10-β-Methyl ergosterol
• Other names: Ergosta-5,7,22-trien-3-ol, (3β,22E)-; Ergosterin; Provitamin D; Provitamin D2; (3β)-Ergosta-5,7,22- trien-3-ol; (3β,22E)-Ergosta-5,7,22-trien-3-ol; Ergosterol, # 2; Ergosta-5,7,22-trien-3β-ol; Ergosterol, # 1
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Phase change data
  • UV/Visible spectrum
  • References
  • Notes
• Other data available:
  • Condensed phase 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 as indicated in comments:
AC - William E. Acree, Jr., James S. Chickos
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Enthalpy of vaporization

Enthalpy of sublimation

UV/Visible spectrum

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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: Victor Talrose, Alexander N. Yermakov, Alexy A. Usov, Antonina A. Goncharova, Axlexander N. Leskin, Natalia A. Messineva, Natalia V. Trusova, Margarita V. Efimkina

Spectrum

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Additional Data

References

Go To: Top, Phase change data, UV/Visible spectrum, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Hickman, Hecker, et al., 1937
Hickman, K.C.D.; Hecker, J.C.; Embree, N.D., Direct determination of low vapor pressures, Ind. Eng. Chem., 1937, 9, 264-267. [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]

Oja, Chen, et al., 2009
Oja, Vahur; Chen, Xu; Hajaligol, Mohammad R.; Chan, W. Geoffrey, Sublimation Thermodynamic Parameters for Cholesterol, Ergosterol, β-Sitosterol, and Stigmasterol, J. Chem. Eng. Data, 2009, 54, 3, 730-734, https://doi.org/10.1021/je800395m . [all data]

Lang (editor), 1962
Lang (editor), L., Absorption Spectra in the Ultraviolet and Visible Region, 1962, 3, 67. [all data]

Notes

Go To: Top, Phase change data, UV/Visible spectrum, References

• Symbols used in this document:
  

  ΔsubH	Enthalpy of sublimation
  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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