85-1617-85　25-Hydroxyvitamin D3 (Calcifediol) 25mg　CAS No:19356-17-3　005505

特徴

• A metabolite of Vitamin D. The principal circulating form of vitamin D3, formed in the liver by hydroxylation at C-25. Calcium regulator.
• Synonyms:(3β,5Z,7E)-9,10-Secocholesta-5,7,10(19)-triene-3,25-diol; 25-Hydroxycholecalciferol; 25-Hydroxyvitamin D; 25-Hydroxyvitamin D3; Calcidiol; Didrogyl; Hidroferol; Ro 8-8892
• Molecular Formula:C₂₇H₄₄O₂
• Molecular Weight:400.64
• Purity:≥95% (HPLC)
• Appearance:White to Off-White Solid
• Melting Point:105-108ºC
• Solubility:Chloroform (Heated), Methanol (Slightly)
• Atmosphere:Inert Gas
• Method for Determining Identity:Proton NMR Spectroscopic and Mass Spectrometric Analysis
• TLC Conditions:SiO2; Dichloromethane: Methanol=9:1; Visualized with UV and KMnO4; Single Spot, Rf=0.75
• Elemental Analysis:Calculated: %C: 80.94; %H: 11.07
• Water Content (Karl Fischer):As Reported
• Specific Rotation (c=0.3, Chloroform):As Reported
• Storage and Stability:Long-term storage is recommended at -20°C under inert gas. Stable for 6 months after receipt. For maximum recovery of product, centrifuge the original vial prior to removing the cap.
• Important Note:This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
• Toxicity and Hazards:All products should be handled by qualified personnel only, trained in laboratory procedures.