Ergocalciferols
Derivatives of ERGOSTEROL formed by ULTRAVIOLET RAYS breaking of the C9-C10 bond. They differ from CHOLECALCIFEROL in having a double bond between C22 and C23 and a methyl group at C24.
Year introduced: 1990
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Subheadings:
Tree Number(s): D04.210.500.247.222.474, D04.210.500.247.808.412, D04.210.500.812.768.462, D10.570.938.439
MeSH Unique ID: D004872
Entry Terms:
- Calciferols
- Vitamin D 2
- Ergocalciferol
- Vitamin D2
- D2, Vitamin
Pharmacologic Action: