| Customization: | Available |
|---|---|
| Powder: | Yes |
| Customized: | Non-Customized |
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| Product Name: | Vitamin D3 |
| Synonyms: | Vitamin D3; Cholecalciferol |
| CAS: | 67-97-0 |
| MF: | C27H44O |
| MW: | 384.64 |
| EINECS: | 200-673-2 |
| Melting point | 83-86 °C(lit.) |
| alpha | 105 º (c=0.8, EtOH 25 ºC) |
| Boiling point | 451.27°C (rough estimate) |
Vitamin D3, also known as cholecalciferol, is a fat-soluble vitamin, also regarded as a hormone precursor acting on calcium and phosphorus metabolism, it is closely related to sunlight, so it is also called "sunshine vitamin". The 7-dehydrocholesterol produced after dehydrogenation of cholesterol can form cholecalciferol by ultraviolet radiation, so it means that the provitamin D of cholecalciferol is 7-dehydrocholesterol.
USES:
Q: What is your payment terms?
A: We accept all payment terms including TT, LC, DP, CAD.
Q: What is your delivery time?
A: Usually we will arrange the delivery within 5 -15 days.
Q: What is your packing?
A: It depends on the products, we normally use standard package from our factory.
We can also arrange customized packages according to customers' requirements.
Q: What is the validity of the products?
A: We guarantee that the cargoes have Min. 80% shelf life on the delivery date.
Q: How about your after-sale service?
A: We have profession team for loading, as well as the logistics team for documents. Our logistics team will send arrival notice for customers and keeping eyes for their feedback once received our cargoes. If any issue, we will solve it at once and our customers are always long term partners.
Q: How do you treat quality complaint ?
A: First of all, our quality control will reduce the quality problem to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or refund your loss.
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