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CAS number 474-69-1
PubChem 6436872
ChemSpider 4941479 YesY
Jmol-3D images Image 1
Molecular formula C28H44O
Molar mass 396.65 g mol−1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Lumisterol is a compound that is part of the vitamin D family of steroid compounds. It is the (9β,10α) stereoisomer of ergosterol and was produced as a photochemical by-product in the preparation of vitamin D1, which was a mixture of vitamin D2 and lumisterol.[1][2] Vitamin D2 can be formed from lumisterol by an electrocyclic ring opening and subsequent sigmatropic [1,7] hydride shift.


  1. ^ Dewick, Paul M. (2002). Medicinal Natural Products. A Biosynthetic Approach (Second ed.). New York: John Wiley & Sons. p. 259. ISBN 0-471-49640-5. 
  2. ^ Friedmann, Ernst (1989). Neurath, Hans, ed. Vitamin D. Perspectives in Biochemistry. Volume 1. Washington, DC: American Chemical Society. ISBN 978-0-8412-1621-1.