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 an electrocyclic ring opening and subsequent sigmatropic [1,7] hydride shift.

CAS：474-69-1
中文别名：(3β,9β,10α,22E)-麦角甾-5,7,22-三烯-3-醇;
英文别名：(3β,9β,10α,22E)-Ergosta-5,7,22-trien-3-ol;Ergosta-5,7,22-trien-3-ol, (3β,9β,10α,22E)-;(3S,9R,10S,13R,14R,17R)-17-[(E,2R,5R)-5,6-Dimethylhept-3-en-2-yl]-10,13-dimethyl-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-ol;
分子式：C28H44O
分子量：396.648
精确质量：396.339
Psa：20.23
Logp：7.3308

UNII：170D11Q82N

密度：1g/cm3
沸点：501.5ºC at 760mmHg
熔点：118ºC
闪点：216.3ºC
折射率：1.542
蒸汽压：3.7E-12mmHg at 25°C