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CAS RN: 41294-56-8 | 產品號碼: A3125
| 產品號碼 | A3125 |
| 純度/分析方法 | >95.0%(HPLC) |
| 分子式 / 分子量 | C__2__7H__4__4O__2 = 400.65 |
| 外觀與形狀（20°C） | Solid |
| 儲存條件 | Frozen (-20°C) |
| 儲存在惰性氣體下 | Store under inert gas |
| 應避免的情況 | Air Sensitive,Heat Sensitive |
| 包裝和容器 | 10MG-Glass Bottle with Plastic Insert （閲覽圖片）, 50MG-Glass Bottle with Plastic Insert （閲覽圖片） |
| CAS RN | 41294-56-8 |
| Reaxys-RN | 2064794 |
| PubChem Substance ID | 354335206 |
| Merck Index(14) | 4819 |
| MDL編號 | MFCD00868328 |
產品規格
| Appearance | White to Almost white powder to crystal |
| Purity(HPLC) | min. 95.0 area% |
| Melting point | 136.0 to 140.0 °C |
| Specific rotation [a]20/D | +34.0 to +38.0 deg(C=0.3, CHCL3) |
性質
| 熔點 | 136 °C |
| 比旋光 [α]D | 36° (C=0.3,CHCl3) |
| Maximum Wavelength | 264 nm (Diethyl ether) |
GHS
| 圖形表示 |
|
| 信號詞 | Danger |
| 危險性說明 | H300 + H310 + H330 : Fatal if swallowed, in contact with skin or if inhaled. |
| 防範說明 | P501 : Dispose of contents/ container to an approved waste disposal plant. P260 : Do not breathe dust/ fume/ gas/ mist/ vapors/ spray. P270 : Do not eat, drink or smoke when using this product. P262 : Do not get in eyes, on skin, or on clothing. P271 : Use only outdoors or in a well-ventilated area. P264 : Wash skin thoroughly after handling. P280 : Wear protective gloves/ protective clothing. P284 : Wear respiratory protection. P361 + P364 : Take off immediately all contaminated clothing and wash it before reuse. P301 + P310 + P330 : IF SWALLOWED: Immediately call a POISON CENTER/doctor. Rinse mouth. P302 + P352 + P310 : IF ON SKIN: Wash with plenty of water. Immediately call a POISON CENTER/doctor. P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P403 + P233 : Store in a well-ventilated place. Keep container tightly closed. P405 : Store locked up. |
相關法規
運輸資料
| UN編號 | UN2811 |
| 類別 | 6.1 |
| 包裝類別 | II |
| HS編碼* | 2906.19-000 |
Application
Alfacalcidol: A Prodrug of Calcitriol, the Active Form of Vitamin D3
Alfacalcidol (1α-hydroxyvitamin D3) is a prodrug of calcitriol (1α,25-dihydroxyvitamin D3) [C3078] which is the active form of vitamin D3 (cholecalciferol) [
C0314]. The natural supply of vitamin D3 in human being mainly depends on ultraviolet light for conversion of 7-dehydrocholesterol [CAS: 434-16-2] to vitamin D3 in the skin. The transformation (hydroxylation at position 25) of vitamin D3 is catalyzed by enzymes in the liver and the kidney to produce calcitriol. Calcitriol is active in the regulation of the absorption of calcium from the gastrointestinal tract.
However, alfacalcidol is rapidly hydroxylated to calcitriol in the liver, effectively bypassing the critical renal metabolic conversion. Therefore, alfacalcidol is effective for patients with chronic renal failure to remedy vitamin D3 deficiency, and to increase the bone resorption and the bone formation. (The product is for research purpose only.)
C0314]. The natural supply of vitamin D3 in human being mainly depends on ultraviolet light for conversion of 7-dehydrocholesterol [CAS: 434-16-2] to vitamin D3 in the skin. The transformation (hydroxylation at position 25) of vitamin D3 is catalyzed by enzymes in the liver and the kidney to produce calcitriol. Calcitriol is active in the regulation of the absorption of calcium from the gastrointestinal tract.
However, alfacalcidol is rapidly hydroxylated to calcitriol in the liver, effectively bypassing the critical renal metabolic conversion. Therefore, alfacalcidol is effective for patients with chronic renal failure to remedy vitamin D3 deficiency, and to increase the bone resorption and the bone formation. (The product is for research purpose only.)
References
- Metabolism of 1α-hydroxyvitamin D3 to 1α,25-dihydroxyvitamin D3 in perfused rat liver
- Rate of reversal of hypercalcaemia and hypercalciuria induced by vitamin D and its 1alpha-hydroxylated derivatives.
- Alfacalcidol inhibits bone resorption and stimulates formation in an ovariectomized rat model of osteoporosis: distinct actions from estrogen
- A new look at the most successful prodrugs for active vitamin D (D hormone): alfacalcidol and doxercalciferol (a review)
- Routine isotope-dilution liquid chromatography-tandem mass spectrometry assay for simultaneous measurement of the 25-hydroxy metabolites of vitamins D2 and D3
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