Vitamin D3 (Cholecalciferol) CAS:67-97-0 Manufacturer Supplier

Vitamin D is steroid derivatives. It is the general term for the compounds that have similar structures and have the effect of normal skeletal growth and maintenance. At present, there are at least more than ten kinds of sterols that have vitamin D activity. But there are only two important matters, which are known as pro-vitamin D. One is ergosterol that exists in vegetable oil or yeast, which can generate vitamin D2 when irradiated by sunlight or ultraviolet radiation. It is also known as cholecalciferol or ergocalciferol. Another is 7-dehydrochlesterol that exists in the skin. It will become vitamin D3 after irradiated by the light. It is also called cholecalciferol. D2 and D3 have similar structures. They are B ring derivatives of precursors of the sterol. The difference is that the side chain of vitamin D2 has a methyl group and one double bond.

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Application and Effect

Vitamin D3 can maintain normal metabolism of calcium and phosphorus, promote the body's absorption of calcium and phosphorus. When it is lacked, children are easy to get rickets. Vitamin D is a fat-soluble vitamin. There are a dozen compounds that are known to have the effect of vitamin D. Vitamin D2 and vitamin D3 have the important practical significance in no lines steroid derivative. D3 is given priority to with in the world, "International Standards" of vitamin D is pure crystalline D3. The main function of vitamin D are metabolism of calcium, phosphorus. It is difficult to promote the absorption of calcium and phosphorus and the calcification of bone. When the body is lack of vitamin D, the ability to absorb calcium and phosphorus will decrease, and the content of calcium and phosphorus in the blood will reduce. Then calcium and phosphorus cannot be deposited in bone tissue, even bone salt will dissolve and hinder the bone calcification. Children lack of vitamin D will get rickets. Adult lack of vitamin D will get osteomalacia. Japanese like to produce and use D2. In a variety of demand, the amount of pharmaceutical is 30%, feed additives is 65%, and food additives is 5%. According to the "food fortifier use of health standards (1993)" issued by Ministry of Health, D2 and D3, as nutritional supplements, can be used for liquid milk, margarine, dairy products and baby food. Vitamin medicines. It mainly can promote intestinal absorption and deposition of calcium and phosphorus for the treatment of rickets and osteomalacia. It is mainly used in food, health products and other related products.