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D Cholecalciferol Vitamin D3

  • Vitamin D3
  • D Cholecalciferol
  • 99%
  • White Powder
  • 67-97-0
  • C27H44O
  • ISO,Halal,Kosher
  • Healthcare,Medicine,cosmetic
  • 2 Years
  • 1kg/Bag, 25kg/Drum
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Waht is vitamin D3 ?


Vitamin D is a fat-soluble vitamin and is also regarded as a hormone precursor that acts on calcium and phosphorus metabolism. It is closely related to sunlight, so it is also called "sunshine vitamin". Vitamin D is a general term for a family of complexes with the same A, B, C, and D ring structures but different side chains. There are at least 10 known types of vitamin D, but the most important are vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol).


Vitamin D3, also known as cholecalciferol, is a kind of vitamin D. The 7-dehydrocholesterol generated after dehydrogenation of cholesterol can form cholecalciferol after being irradiated by ultraviolet light, so that means the original vitamin D of cholecalciferol is 7 -Dehydrocholesterol.


Product Name: Vitamin D3

CAS Number: 67-97-0

EINECS Number: 200-673-2

Molecular formula: C27H44O

Molecular weight: 384.6377

Density: 0.9717 g/cm3

Melting point: 83-86 °C (lit.)

Boiling point: 496.4ºC at 760 mmHg

Flash point: 214.2ºC

Refractive Index: 1.507 (15ºC)

Stability: stable under normal temperature and pressure

Storage conditions: 2-8ºC


Vitamin D3 is white or light yellow crystal, insoluble in water, soluble in ethanol, chloroform and oil, etc.


Vitamin D3 can also come from animal foods, such as liver, especially cod liver oil extracted from seafood.


Vitamin D3 has the following physiological functions:


1. Improve the body's absorption of calcium and phosphorus, so that the levels of plasma calcium and plasma phosphorus reach saturation.


2. Promote growth and bone calcification, and promote healthy teeth;


3. Increase the absorption of phosphorus through the intestinal wall and increase the reabsorption of phosphorus through the renal tubules;


4. Maintain the normal level of citrate in the blood;


5. Prevents the loss of amino acids through the kidneys



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As long as our products are sold to North America, Europe, Australia, South America and the Middle East, the quality of our products is reliable and we have won the unanimous trust of our customers.


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