Name:Resveratrol
CAS NO.:501-36-0
Molecular formula:C14H12O3
Appearance:Colorless needle crystal, soluble in ether, chloroform, methanol.
| Product Name | Resveratrol |
| Appearance | Off- white to white Characteristic characteristic |
| Method of processing | Extraction |
| Solvents(s) used | Ethanol&Water |
| Drying method | Vacuum drying |
| Excipient | None |
| Ratio of extraction | 100:1 |
| Melting point | 253ºC-255ºC |
| Solubility | Soluble in alcohol |
| Particle size(80 mesh) | ≥90.0% pass 5um |
| Loss on drying | <2.0% |
| Ash content | <1.0% |
| Solvent residues | EUR Pharm |
| Total heavy metals | <10ppm |
| As | <2.0ppm |
| Lead | <2.0ppm |
| Mercury | < 0.5 ppm |
| 666 | < 0.2 ppm |
| DDT | < 0.2 ppm |
| Total plate count | < 1000cfu/g |
| Total Yeast &Mold | ≤100cfu/g |
| E.Coil | Negative |
| Salmonella | Negative |
Resveratrol oxidation, in addition to the lure of free radicals and the effect of arachidonic acid metabolism pharmacological function has attracted widespread interest, because the physiological metabolism involves many physiological disease is closely related to human health, such as atherosclerosis, alzheimer's disease, viral hepatitis, stomach ulcers, inflammation and allergic reaction, etc
Resveratrol is a polyphenol compounds, mainly derived from grape (red wine), giant knotweed, peanut, mulberry and other plants .
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Answer:Because so many free sample orders everyday to us, sorry, we need to supply sample with charge, but sample charge can be deducted from future orders.Hope you can understand.
Question 2: How to assure your delivery same good quality as sample?
Answer: We just take sample from mass production. So same production line,same quality. Even we can supply you preshipment batch sample approval.
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The most important is pls book order directly in Alibaba order.You can get extra Ali trade assurance. Our current assurance limit is USD104000 and will still up in future.
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Question 4:What kind of payment do you prefer?
Answer: We can accept TT, DP,LC,Westunion etc.
Payment
Payment Term | T/T | 30% T/T in advance, paid the balance before shipment | |
| CFR(C&F) | |||
| 30% T/T in advance, paid the balance against copy of B/L | |||
| CIF | |||
| L/C | L/C amount above 20,000 usd, we can accept L/C at sight after the issuing bank approved by us | ||
| West Union | |||
| Amount lower than 5000usd | |||