Melting point: 253℃~255℃

Solubility: soluble in diethyl ether,Chloroform, Etheyl alcohol,Acetone

Analytical method: HPLC

Specification: （HPLC）≥20% ，50%，80%，98%

Particle size: 100 mesh

Plant origin: Polygonum cusPldatum

Storage:Store in a cool and dry area, keep sealed and keep away from direct light, high-temperature

Shelf Life:two years when stored properly

Packing: Double-deck plastic bag, pack with aluminium foil paper outside

Pharmacology function : Antibiotic antivirus , antitumor , resists the hepatitis , suppresses the agglutinate production with plain B2 of thrombus of blood platelet . It can prevent low density fat albumen from oxidize , have potential prevention and cure cardiovascular disease , gives protection against cancer , antivirus and immune regulating action , its function is shown as its anti-oxidant characteristic mainly.

Clinical practice: Used in the acute jaundice type infective hepatitis, blood silt and menorrhoea, rheumatism type arthralgia , muscle bone-ache , sand drench , blood drenching , bronchitis , damp and hot gall stone; It is too high to be used in the cholesterolemia and triglyceride; It is anti-oxidant to be used in , slowed aging.

Security : It measure security of resveratrol by the extent of damaging by leucocyte release lactic acid dehydrogenation enzyme to cell.we findthat its LD50 is weight 1000mg of each kilogram. The size of resveratrol between 5*10-7 with 10-3M cause lactic acid dehydrogenation of enzyme to release lower than 7%. Making the resveratrol has very high securities.