Product name: resveratrol       
Plant origin: rootstock
Plant origin: Shandong, Henan, Shaanxi, Hubei, Hunan, Jiangxi, Fujian, Taiwan, Yunnan, Sichuan, Guizhou, Guangdong, Anhui
Effective constituent: resveratrol
Product specification: 50%-98%
Testing method: HPLC
Appearance: brown to white powder
Smell character: light bitter taste
CAS No.:501-36-0
Molecular weight: 228.24 
Molecular formula: C₁₄H₁₂O₃ 
Structural formula:  
Function and uses: Resveratrol and rheum emodin are main ingredient in Polygonum cuspidatum. And they have excellent antioxidant property and can be used to:
Cleaning heating and relieve pain
Anti-rumor and anti-mutation
Protection of heat and liver
Antithrombus function
Improvement of activity of immune system
Solubility:
0.03 g/L (water)
16 g/L (DMSO)
50 g/L (ethyl alcohol)
Scope of application: Polygonum cuspidatum capsule

Above information has not been approved by State Food and Drug Administration yet. From published document and for reference only