ergocalciferol
1high purity and quality
2low price and good service
3pure natural
4special manufacturer
ergocalciferol
best quality, competitive price, fast delivery, excellent service.
product: ergocalciferol
brief introduction
vitamin d, which is also known as ergocalciferol, is best known for its role in the development and maintenance of healthy teeth, bones, and cartilage in children and adults. vitamin d helps the body keep bones and teeth strong by increasing absorption of calcium and phosphorus from the small intestine.
there are two forms of vitamin d: ergocalciferol, which is found in such foods as fortified milk, herring, mackerel, tuna, salmon, sardines, eggs, fortified cereals and baked goods; and cholecalciferol, which is manufactured when the body is exposed to sun.
detailed product description
product name: ergocalciferol
c.a.s# : 50-14-6
synonyms: calciferol; ergocalciferol; oleovitamin d2; 9,10-secoergosta-5,7,10,22-tetraen-3-ol
molecular formula: c28h44o
molecular weight : 396.65
assay: 97.0%-103.0%
quality standards: usp30
ergocalciferol contains not less than 97.0 percent and not more than 103.0 percent of c19h19n7o6.
characteristic: white crystals.
melting point: 115-119°c
alpha: 82° (c=3, in acetone 25°c)
water solubility: at 26 °c, solubility in ethanol is 28 g/100ml, in acetone is 25 g/100ml. ether -soluble, do not dissolve in water.
packing &storage condition
storage: store in cool & dry place, keep away from strong light and heat.
shelf life: 24months when properly stored.