CAS Number
67-97-0
Grade
USP
Packaging
Box
Chemical Formula: C₂₇H₄₄O
Vitamin D3, also known as cholecalciferol, is a fat-soluble vitamin essential for calcium and phosphorus absorption in the human body. It is produced naturally in the skin upon exposure to sunlight and is widely supplemented to support bone health, immune function, and overall wellness. Vitamin D3 appears as a white to off-white crystalline powder and is typically stabilized on carriers for formulation use.
Appearance:
White to off-white crystalline powder
Uses:
Nutritional Supplements:
Commonly included in multivitamins, capsules, and gummies to support bone strength, immune health, and calcium metabolism. Especially recommended for individuals with limited sun exposure or Vitamin D deficiencies.
Pharmaceutical Applications:
Used in prescription-strength formulations to treat or prevent rickets, osteomalacia, and other metabolic bone diseases. Supports parathyroid hormone regulation and calcium homeostasis.
Food & Beverage Industry:
Fortifies dairy products, juices, cereals, and infant formula to ensure adequate Vitamin D intake as part of daily nutrition.
Cosmetics & Personal Care:
Occasionally added to skincare products for its role in maintaining healthy skin and supporting the skin barrier function.
Animal Nutrition:
Incorporated into livestock and pet feed to promote proper bone development and general health.




