Translations:Vitamin D/7/en

Types

Name Chemical composition Structure
Vitamin D1 Mixture of molecular compounds of ergocalciferol with lumisterol, 1:1
Vitamin D2 ergocalciferol (made from ergosterol) Note double bond at top center.
Vitamin D3 cholecalciferol

(made from 7-dehydrocholesterol in the skin).

File:Cholecalciferol.svg
Vitamin D4 22-dihydroergocalciferol File:22-Dihydroergocalciferol.svg
Vitamin D5 sitocalciferol

(made from 7-dehydrositosterol)

File:Vitamin D5 structure.svg