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5,6-trans-Vitamin D3(5,6-trans-Cholecalciferol) is an isoform of Vitamin D3, which is converted from Vitamin D3 on the skin surface after light exposure.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 1 mg | $83 | In Stock | In Stock | |
| 5 mg | $198 | In Stock | In Stock | |
| 10 mg | $339 | In Stock | In Stock | |
| 25 mg | $566 | In Stock | In Stock | |
| 50 mg | $791 | In Stock | In Stock | |
| 100 mg | $1,090 | - | In Stock | |
| 500 mg | $2,190 | - | In Stock |
| Description | 5,6-trans-Vitamin D3(5,6-trans-Cholecalciferol) is an isoform of Vitamin D3, which is converted from Vitamin D3 on the skin surface after light exposure. |
| In vitro | The dissociation constants of vitamin D receptor (VDR) for 25-hydroxytachysterol3, 25-hydroxy-5,6-trans-vitamin D3, and 5,6-trans-vitamin D3 were 22, 58, and 560 nM, respectively. The dissociation constants for 7-dehydrocholesterol, tachysterol, and lumisterol were greater than 20 microM. In conclusion, vitamin D3, its photoisomers and the photoisomers of previtamin D3 have antiproliferative activity in cultured human keratinocytes.[1]. |
| Synonyms | Cholecalciferol EP Impurity A, 5,6-trans-Colecalciferol, 5,6-trans-Cholecalciferol |
| Molecular Weight | 384.64 |
| Formula | C27H44O |
| Cas No. | 22350-41-0 |
| Smiles | CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2\C(CCC[C@]12C)=C\C=C1/C[C@@H](O)CCC1=C |
| Storage | keep away from direct sunlight,store under nitrogen | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | ||||||||||||||||||||||||||||||||||||||||
| Solubility Information | Ethanol: 30 mg/mL (78 mM), Sonication is recommended. DMF: 10 mg/mL (26.00 mM), Sonication is recommended. Ethyl Acetate: 20 mg/mL (52 mM), Sonication is recommended. DMSO: 1 mg/mL (2.60 mM), Sonication is recommended. | ||||||||||||||||||||||||||||||||||||||||
Solution Preparation Table | |||||||||||||||||||||||||||||||||||||||||
DMSO/DMF/Ethyl Acetate/Ethanol
DMF/Ethyl Acetate/Ethanol
Ethyl Acetate/Ethanol
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