| Bioactivity | Previtamin D3 is an intermediate in the production of cholecalciferol (vitamin D3)[1]. |
| Name | Previtamin D3 |
| CAS | 1173-13-3 |
| Formula | C27H44O |
| Molar Mass | 384.64 |
| Appearance | Oil |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | -20°C, protect from light, stored under nitrogen *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen) |
| Reference | [1]. M F Holick, et al. The Cutaneous Photosynthesis of Previtamin D3: A Unique Photoendocrine System. J Invest Dermatol. 1981 Jul;77(1):51-8. |