Molecular Formula C28H44O
Molecular Weight 396.65
CAS Registry Number 474-69-1
EINECS 207-487-0
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. Vitamin D2 can be formed from lumisterol by a electrocyclic
ring opening and subsequent sigmatropic hydride shift.
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