USD $8.20-8.80 / Kilogram
USD $8.20-8.80 / Kilogram
USD $4.50-5.00 / Liter
USD $1.00-10.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $100.00-150.00 / Kilogram
USD $100.00-150.00 / Kilogram
USD $3.00-5.00 / Kilogram
USD $3.00-5.00 / Kilogram
99% cas no.1406-16-2 pure high quality vitamin d
vitamin d is a steroid derivative, with the role of anti-rickets, also known as anti-rickets vitamin. vitamin d is also now considered a steroid hormone, vitamin d family is the most important members of vd2 and vd3. vitamin d is a derivative of the type of the original irradiated by uv. plants contain vitamin d, but vitamin d original moving, plants are present. vitamin d is a fat-soluble vitamin, there are five compounds, more closely related to health are vitamin d2 and vitamin d3. they have the following three characteristics: it occurs in some natural foods; human skin cholesterol stores a generated from 7 - dehydrocholesterol, that the irradiation of ultraviolet rays, can be converted to vitamin d3. adequate enough to meet the needs of sunbathing vitamin d in the body.