5,6-TRANS-VITAMIN D3

Non disponible en dehors du Royaume-Uni et de l'Irlande

General description

Calciol is a hydroxy seco-steroid that is (5Z,7E)-9,10-secocholesta-5,7,10(19)-triene in which the pro-Shydrogenat position 3 has been replaced by ahydroxygroup. It is the inactive form of vitamin D₃, being hydroxylated in the liver tocalcidiol(25-hydroxyvitamin D₃), which is then further hydroxylated in the kidney to givecalcitriol(1,25-dihydroxyvitamin D₃), the active hormone. It has a role as a human metabolite. It is a seco-cholestane, a hydroxy seco-steroid, a member of D₃ vitamins, a secondary alcohol and a steroid hormone.