Posted by sunny on August 01, 2005 at 05:24:47:
In Reply to: Re: Herbal Extract & raw material posted by smile on March 24, 2005 at 01:18:25:
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Product Information of Bio-vine
Bio-vine: Grape Skin Extracted Resveratrol
Formal Name: [trans¨C3,4',5¨CTrihydroxystilbene
Molecular Formula C14H12O3
Molecular Weight 228.2 Daltons
Odor : Characteristic
Purity: No Less Than 98%
Stability: Refrigerate. Protect from light. This product is stable for 3 years as supplied
Solubility "DMSO and acetone (50 mg/mL)
Supplied as: A Off¨Cwhite solid. Packaged under an inert gas
UV/Vis: ¦Ëmax: 218, 235, 307, 321 nm
For long term storage£¬we suggest that Resveratrol be supplied at-20˚C£®It will be stable for at least three year.
Resveratrol is supplied as a crystalline solid.A stock solution may be made by dissolving the Resveratrol in an
organic solvent purged with an inert gas.Resveratrol is soluble in organic solvents such as ethanol,DMSO,and dimethyl
formamide.The solubility of Resveratrol in these solvents is at least 65mg/ml
Further dilutions of the stock solution into aqueous buffers or isotonic saline should be made prior to performing
biological experiments.Ensure that the residual amount of organic solvent is insignificant,since organic solvents may
have physiological effects at low concentrations.Organic solvent-free aqueous solutions of Resveratrol can be prepared
than 100ug/ml.We do not recommend storing the aqueous solution for more than one day.
Resveratrol is a selective inhibitor of cyclooxygenase-1(COX-1).¹ It inhibits cyclooxgenase and peroxidase
activities of COX-¹ with ED values of 15and 3.7uM,respectively.respectively.It also has antioxidant properties.
Jang, M., et al. 1997. Science 275, 218.
Chen, C.K., et al. 1996. Gen. Pharmacol. 27, 363
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