lumisterol


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lumisterol

(luːˈmɪstəˌrɒl)
n
(Biochemistry) biochem a steroid compound produced when ergosterol is exposed to ultraviolet radiation. Formula: C28H44O
[C20: from Latin lumin-, lūmen light + sterol]
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3] into biologically inactive metabolites, tachysterol and lumisterol.
Vitamin D1, molecular compound of ergocalciferol with lumisterol.
Whereas irradiation in cyclohexane solution for one hour produces only about 5 per cent conversion of DHC to previtamin, the product is significantly contaminated with at least two by-products, lumisterol and tachysterol.