CAS 50-14-6 100,000iu Calciferol Vitamin D2 Powder

Vitamin D2, chemically known as ergocalciferol, is a ring-opening steroid formed by chemical bond breaking of steroids under photochemical  action, especially under the action of ultraviolet light and ergosterol. The ergocalciferol prepared in the early stage is also known as Viosterol. According  to the diagnostic guidelines of the United States in 2011, ergocalciferol may be  used as a dietary supplement to supplement vitamin D. ergocalciferol and cholecalciferol (vitamin D3) produced by skin under ultraviolet radiation are equally effective. There are many names for ergocalciferol. Vitamin D2 is absorbed by the  small intestine, and its absorption requires bile salt and special α- After binding, globulin is transported to other parts of the body and stored in liver and fat.

Metabolism and activation first pass through the liver, followed by the kidney.

The starting time of action is 12-24 hours, and the treatment effect takes 10-14 days.