タイトルまたは説明

Vitamin D2
C.A.S# : ******6
Synonyms: Calciferol; Ergocalciferol; Oleovitamin D2; 9,**-Secoergosta*5,7,*0,**-tetraen**-ol
Molecular formula: C*8H*4O
Molecular weight :  **6.*5
Assay:  *7.0%***3.0%
Quality Standards: USP*0
Ergocalciferol contains not less than *7.0 percent and not more than **3.0 percent of C*9H*9N7O6.
Characteristic: White crystals.
Melting point:  ******9°C
alpha:  *2°(c=3, in acetone *5°C)
Water solubility: At *6℃, solubility in ethanol is *8 g/**0ml, in acetone is *5 g/**0ml. 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.