Vitamin D3( cholecalciferol )

Vitamin D3 (Cholecalciferol) can cure and prevent the rachitis, halisterisis caused by the lack of Vitamin D. Used in the producing preparations and compound preparations. A?D preparation is for the use of human being,A?D?E compound preparation is for animal. Also used in the nutrition intensifying agent of milk powder and lacovo. Appearance :clear needle-shaped crystal or white crystalline powder Absorption Coeff. :0.46-0.50 (at 265nm) Optical Rotation: +105~+112?(in anhydrous ethanol) Solubility: readily soluble in ethanol, acetone, chloroform, or ethyl ether; insoluble in water Assay: 97.0-103.0% Activity :40,000,000I.U/g Reference Standard :USP24,CP2000, BP98