viosterol
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er·go·cal·cif·er·ol
(er'gō-kal-sif'ĕr-ol),Activated ergosterol, the vitamin D of plant origin; it arises from ultraviolet irradiation of ergosterol, which is cleaved at the 9,10 bond and develops a double bond between C-10 and C-19; used in prophylaxis and treatment of vitamin D deficiency.
viosterol
(vī-ŏs′tə-rôl′, -rōl′)n.
Ergosterol activated by ultraviolet irradiation; vitamin D2.
viosterol
[vī·os′tərôl]
synthetic vitamin D2 in an oil base. Also called synthetic oleovitamin D. See also calciferol, ergosterol.
viosterol
(vi-os'ter-ol)A solution of irradiated ergosterol in vegetable oil. Synonym: calciferol