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specification:   97.0%-103.0%Ergocalciferol
Synonyms: Calciferol; Ergocalciferol; Oleovitamin D2; 9,10-Secoergosta-5,7,10,22-tetraen-3-ol
Molecular formula: C28H44O
Molecular weight :  396.65
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 ℃, solubility in ethanol is 28 g/100ml, in acetone is 25 g/100ml. Ether -soluble, do not dissolve in water.
Function and Usage: Ergocalciferol is one major form of vitamin D which can prevent and treat osteoporosis and rickets.It also has a part in cancer prevention,at least for colon cancer.


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