Calcitriol (Vitamin D3)

The biologically active form of Vitamin D3. Calcium regulator; vitamin (antirachitic); antihyperparathyroid; antineoplastic; antipsoriatic.||Synonyms:|(1R,3S,5Z)-4-Methylene-5-[(2E)-2-[(1R,3aS,7aS)-octahydro-1-[(1R)-5-hydroxy-1,5-dimethylhexyl]-7a-methyl-4H-inden-4-ylidene]ethylidene]-1,3-cyclohexanediol; (1α,3β,5Z,7E)- 9,10-Secocholesta-5,7,10(19)-triene-1,3,25-triol,; 1α,25-Dihydroxycholecalciferol; 1α,25-Dihydroxyvitamin D3; Calcijex; Dihydroxyvitamin D3; Panbonis; Ro 21-5535; Rocaltrol; Silkis; Solbone P; Soltriol; Topitriol; Toptriol||CAS No:|32222-06-3||Molecular Formula:|C₂₇H₄₄O₃||Molecular Weight:|416.64||Purity:|≥95%||Appearance:|Supplied as a white solid||Melting Point:|>94ºC (dec)||Solubility:|Chloroform (Slightly), Methanol (Slightly) ||Atmosphere:|Inert Gas||Method for Determining Identity:|Proton NMR (CDCl3) Spectroscopic and Mass Spectrometric Analysis||TLC Conditions:|SiO2; Dichloromethane: Methanol=9:1; Visualized with UV and AMCS; Single Spot, Rf=0.40||Elemental Analysis:|Calculated: %C: 77.83; %H: 10.64||Water Content (Karl Fischer):|As Reported||Specific Rotation (c=0.1, Methanol):|As Reported||Storage and Stability:|Long-term storage is recommended at -70°C under Inert gas. Stable for 6 months after receipt. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Air and temperature sensitive. Store under Inert atmophere.||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.