Description
Synonyms:
9,10-Secocholesta-5,7,10(19)-trien-3beta-ol; Cholecalciferol
CAS NO. : 67-97-0
Molecular Formula : C27H44O
Molecular Weight : 384.64
Appearance: White fine Powder
Description About Vitamin D3
Vitamin D3 is a fat-soluble vitamin, is used as a precursor for calcium, phosphorus metabolic hormones,it has close relationship with sunshine, so also called the “sunshine vitamin”.
Vitamin D3 is made in the skin when 7-dehydrocholesterol reacts with ultraviolet light (UVB) at wavelengths between 270 and 300 nm, with peak synthesis occurring between 295 and 297 nm. These wavelengths are present in sunlight when the UV index is greater than three and also in the light emitted by the UV lamps in tanning beds. Tanning lamps produce ultraviolet primarily in the UVA spectrum, but typically produce 4% to 10% of the total UV emissions as UVB. At this solar elevation, which occurs daily within the tropics, daily during the spring and summer seasons in temperate regions, and almost never within the arctic circles, vitamin D3 can be made in the skin.
Vitamin D3 Powder is widely used in nutrition fortifier in nutraceutical and food product.
