Vitamin D3 Cholecalciferol
- CAS
- 67-97-0
- EC
- 200-673-2
- Sectors
- Nutraceuticals & Supplements, Pharma & Healthcare, Personal Care & Cosmetics
Vitamin D3 Cholecalciferol (CAS 67-97-0) is a vitamin supplied as a white to off-white crystalline powder, obtained by UV irradiation of 7-dehydrocholesterol from lanolin or fish oil, and is used in supplements for vitamin D deficiency and bone health, in pharmaceuticals for osteoporosis, and in cosmetics for anti-aging. It has a density of 0.96 g/cm³, melting point 83-86°C, boiling point 496.4°C at 760 mmHg, flash point 214.2°C, and refractive index 1.52. Insoluble in water, soluble in organic solvents like ethanol and acetone, it is light-sensitive, produced by UV irradiation of 7-dehydrocholesterol from lanolin or fish oil.
Typical Properties
| Molecular formula | C27H44O |
|---|---|
| Molecular weight | 384.64 g/mol |
| Appearance | Crystalline |
| Form | powder |
| Color | White |
| Odor | odorless |
| Melting point | 84-85 °C |
| Density | 0.939 g/cm³ |
| Water solubility | <0.1 g/L (20 °C) |
| Flash point | 14 °C |
| GHS signal word | Danger · Acute toxicity, Health hazard |
| HS code | 29362990 |
| Grades available | Feed Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Vitamin D3 Cholecalciferol
Applications
Used as a supplement for vitamin D deficiency and bone health; in food fortification for dairy and juices; in pharmaceuticals for osteoporosis; in cosmetics for anti-aging; in animal feed for poultry and livestock; in research for endocrine studies.
Safety & Risks
Toxic in excess leading to hypercalcemia and soft tissue calcification; irritates eyes and skin. Strong oxidizer in some forms; decomposes to toxic fumes. Hazard Class 6.1; use PPE, avoid inhalation; monitor kidney function in prolonged use.
Packaging
Supplied in 25kg cardboard boxes with inner aluminum bags or PE liners for light protection; store sealed in cool, dry are.