CPC Subgroup
A61K 31/593 9,10-Secocholestane derivatives, e.g. cholecalciferol, i.e. vitamin D3
Full Title
Medicinal preparations containing organic active ingredients > Compounds containing 9, 10- seco- cyclopenta[a]hydrophenanthrene ring systems > 9,10-Secocholestane derivatives, e.g. cholecalciferol, i.e. vitamin D3