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| Vitamin D3Crystal Medicine
Grade
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| 1.Technical
Process
Vitamin D3
Crystal medicine grade is
obtained from the esterification,hydrolyzation
and refiningof High Potential Vitamin D3
Resin.
2.Main specifications
| Items
|
Specifications |
| Description |
White crystalline
powder |
| Solubility |
Corresponding |
| Identification |
Positive |
| Melting
Point |
82°C-87°C |
| Related substances |
Corresponding |
| Light absorption |
465-495 |
| Specific optical rotation |
+105°-112° |
| Assay |
97.0-103.0% |
| 38,800,000-41,200,000
IU/G |
| Conclusion |
Confirm
to USP24,Bp98.EPIV |
|
3.Analysis method
of Assay
HPLC.Mobile phase,acetonitrile:islpropanol:water=90:7:3. Velocity,1.5-2.5ml/min.Wavelength,265nm.
4.Usage
a.In pharmaceutical formulations for Vitamin
D remedy.
b.As additives for milk,dairy,foods and beverage
as Vitamin D supplement to promote the absorption
of calcium and phosphorus.
5.Packing
Aluminum bags lined with food grade PE bags,then
packaged into Aluminum Cans and in paper cartons.The
package size can be made as per customers'requirement.
6.Stability and storage
Stored under dry,cool and dark condition and
avoid moisture,water or heat.The shelf life
is 12 months.
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