| Customization: | Available |
|---|---|
| CAS No.: | 501-36-0 |
| Formula: | C14h12o3 |
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| Product name | resveratrol |
| CAS NO | 501-36-0 |
| Appearance | White to off-white crystaline powder |
| Mf | C14H12O3 |
| Mw | 228.243 |
Physical and chemical properties
Resveratrol (3-4'-5-trihydroxystilbene) is a non-flavonoid polyphenol compound with the chemical name 3,4', 5-trihydroxy-1, 2-diphenyl ethylene (3,4', 5-stilbene), molecular formula C14H12O3, molecular weight 228.25. The pure product of resveratrol is white to light yellow powder, odorless, insoluble in water, soluble in ether, methanol, ethanol, acetone, ethyl acetate and other organic solvents, melting point 253 ~ 255ºC, sublimation temperature 261ºC. Resveratrol can appear red with alkaline solution such as ammonia, and can react with ferric chloride and potassium ferricocyanide, and can be identified by this property.
Natural resveratrol has two structures: cis and trans. In nature, it mainly exists in trans conformation. The two structures can be combined with glucose respectively to form cis and trans resveratrol glycosides. The cis-trans resveratrol glycosides release resveratrol in response to the action of glycosidase in the gut. Under ultraviolet light, trans-resveratrol can be converted into cis-isomers.
Resveratrol fluoresces under UV light at 366nm. Jeandet et al. determined the UV spectral properties of resveratrol and its infrared absorption peaks at 2800~3500cm (OH bond) and 965cm (double bond trans). Experiments have shown that as long as the light is completely isolated, even if left for several months, trans-resveratrol is stable, except in high pH buffers.
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