IUPAC name: (3β,5Z,7E)-9,10-secocholesta-5,7,10(19)-trien-3-ol
Other names: activated 7-dehydrocholesterol, vitamin D3
Molecular formula: C27H44O
Molar mass: 384.64 g/mol
Appearance: white or light yellow, needle-like crystals
Melting point: 83–86 °C
Carrier: corn syrup, sunflower seed oil, sodium caseinate
Particle size: 80mesh
Loss on drying: 5%max
Vitamin D is a fat-soluble vitamin that is naturally present in very few foods, added to others, and available as a dietary supplement. Vitamin D obtained from sun exposure, food, and supplements is biologically inert and must undergo two hydroxylations in the body for activation. The first occurs in the liver and converts vitamin D to 25-hydroxyvitamin D [25(OH)D], also known as calcidiol. The second occurs primarily in the kidney and forms the physiologically active 1,25-dihydroxyvitamin D [1,25(OH)2D], also known as calcitriol.
Vitamin D is known as the sunshine vitamin since it is manufactured by the body after being exposed to sunshine. It promotes calcium absorption in the gut and maintains adequate serum calcium and phosphate concentrations to enable normal mineralization of bone and to prevent hypocalcemic tetany. It is also needed for bone growth and bone remodeling by osteoblasts and osteoclasts. Without sufficient vitamin D, bones can become thin, brittle, or misshapen. Vitamin D sufficiency prevents rickets in children and osteomalacia in adults. Together with calcium, vitamin D also helps protect older adults from osteoporosis. It also helps maintain adequate levels of calcium and phosphorus in the blood. Vitamin D has other roles in the body, including modulation of cell growth, neuromuscular and immune function, and reduction of inflammation. Many genes encoding proteins that regulate cell proliferation, differentiation, and apoptosis are modulated in part by vitamin D. Many cells have vitamin D receptors.
We provide vitamin D3 with a potency of no lower than 500,000 International Units per gram. Mainly used as premix compound, our vitamin D3 has stable performance, thus ensures its uniform distribution. Its liquidity could bear heating at 130℃ for 90 minutes.
Vitamin D3 should be stored in cool, ventilated place where it can be kept from water as well as light. It is packed in 25 kg a bag. To ensure best activity, use it in 18 months.
Activated-7-dehydrocholesterol | CC | Cholecalciferol | VD3
We are a specialized vitamin D3, cholecalciferol manufacturer and supplier in China. We also provide allicin, meat bone meal, DCP chemical, choline chloride, feed grade yeast powder, and more.