21343-40-8
25-Hydroxy Vitamin D2
CAS: 21343-40-8
Molecular Formula: C28H44O2
21343-40-8 - Names and Identifiers
21343-40-8 - Physico-chemical Properties
| Molecular Formula | C28H44O2 |
| Molar Mass | 412.65 |
| Density | 1.02±0.1 g/cm3(Predicted) |
| Melting Point | 45-51°C |
| Boling Point | 542.3±38.0 °C(Predicted) |
| Flash Point | 14℃ |
| Appearance | White crystalline powder. |
| BRN | 4716773 |
| pKa | 14.74±0.20(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Store in freezer, under -20°C |
| MDL | MFCD02683431 |
| Physical and Chemical Properties | Bioactive Ercalcidiol is a vitamin D2 metabolite as an indicator of the nutritional status of vitamin D. |
21343-40-8 - Risk and Safety
| Risk Codes | R24/25 - R26 - Very Toxic by inhalation R48/25 - R11 - Highly Flammable |
| Safety Description | S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S16 - Keep away from sources of ignition. S7 - Keep container tightly closed. |
| UN IDs | UN2811 6.1/PG 2 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 8-10-19 |
21343-40-8 - Upstream Downstream Industry
| Raw Materials | Vitamin D2 |
21343-40-8 - Preparation solution concentration reference
| 1mg | 5mg | 10mg | |
|---|---|---|---|
| 1 mM | 2.423 ml | 12.117 ml | 24.234 ml |
| 5 mM | 0.485 ml | 2.423 ml | 4.847 ml |
| 10 mM | 0.242 ml | 1.212 ml | 2.423 ml |
| 5 mM | 0.048 ml | 0.242 ml | 0.485 ml |
Last Update：2024-01-02 23:10:35
21343-40-8 - Uses and synthesis methods
Target
Human Endogenous Metabolite
in vitro studies
Differentiation between Ercalcidiol (25(OH)D 2 ) and 25(OH)D 3 is important for monitoring vitamin D therapy, as vitamin D 2 is the predominant prescription form. The half-life of Ercalcidiol is shorter than that of 25(OH)D 3 and it binds less well to the vitamin D binding protein, making it less potent and, therefore, required to be administered at much higher doses than vitamin D 3 . Some currently used assays have a diminished capacity to detect Ercalcidiol, which can lead to dangerous overdosing when attempting to monitor therapy with vitamin D 2 .
Last Update：2024-04-10 22:29:15
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Raw Materials for 21343-40-8