Customization: | Available |
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CAS No.: | CAS 67-97-0 |
Formula: | C27h44o |
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Vitamin D3 (Cholecalciferol)It is a kind of vitamin D. The 7-dehydrocholesterol generated after cholesterol dehydrogenation can be irradiated with ultraviolet rays to form cholecalciferol, so that is to say, the vitamin D of cholecalciferol was originally 7-dehydrocholesterol. Cholecalciferol forms 25-hydroxycholecalciferol through the action of hydroxylase in the liver, and is then hydroxylated into 1,25-dihydroxycholecalciferol in the kidney. The activity of this substance is 50% higher than that of cholecalciferol , proven to be the true active form of vitamin D in the body. And 1,25-dihydroxycholecalciferol is a hormone secreted by the kidneys, so cholecalciferol is actually a prohormone.
Product Name | cholecalciferol |
CAS No. | 67-97-0 |
Molecular Formula | C27H44O |
Molecular Weight | 384.64 |
Quality Standard | BP2014/USP39/EP7/E300/FCC7 |
Packing | 25 kg/carton |
Shelf Life | 3 Years |
Items | Specification |
Assay | 99.0%-100.5% |
Characteristics | White or almost white,Crystalline powder or colourless crystals |
Identification | Corresponds |
Melting Point | +105.0°- +112.0° |
Apperance of Solution | Clarity: Clear; Colour: ≤BY7 |
Heavy Metals | ≤10ppm |
Copper | ≤5 ppm |
Iron | ≤2 ppm |
Mercury | <1 ppm |
Arsenic | ≤3 ppm |
Cadmium | <1 ppm |
Lead | <2 ppm |
Loss of Drying | ≤0.4% |
Sulphate Ash | ≤0.1% |
Oxalic Acid (Impurity E) | ≤0.2% |
Related substances | Impurity C: ≤0.15% Impurity D: ≤0.15% Unspecified impurities: ≤0.10% Total impurities: ≤0.20% |
Residual solvents | Meets the requirements |
Goods weight |
Packing |
Shipping method |
Lead-time |
1-50kg |
Below 5kg Use Foil bag;5-25kg use two layer PP bag,then into master carton or cardboard drum |
International express |
1~3 days after your payment |
100-200kg |
25kg/drum,use two layer PP bag,then into cardboard drum |
Air shipping Sea Shipping |
3~5 days after your payment |
Over 500kg |
25kg/drum,use two layer PP bag,then into cardboard drum |
Sea shipping |
5~10 days after your payment |
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