Product name: Resveratrol Specification: 20% ， 50% ， 80% ， 98% ( As per customer requirement) Testing method : HPLC Appearance: Yellowish or white powder       Plant Source: This product is an extract from the root and rhizome of olygonum cuspidatum Sieb. et Zucc. Active   ingredients ：   Resveratrol Molecular Formula: C 14 H 12 O 3 Molecular Weight: 228.25 CAS Number ： 501-36-0 Medical Function: 1. anti viral 2. anti leptospirosis 3. anti fungal 4. relaxes the bronchial smooth muscles, expels phlegm, and suppresses asthma and cough 5. lower blood pressure and lipids 6. stops bleeding in external injuries 7. inhibits pain 8. astringent 9. anti inflammatory 10.  antibiotic, like:  Pseudomonas aeruginosa ， Staphylococcus aureaus ， Moraxella (Branhamella), catarrhalis ， Streptococcal ， Escherichia coli. Traditional Chinese medicine : For jaundice, gall bladder stones, blood stasis with menses stoppage, yeast infection, rheumatoid arthritis, physical injuries from impacts, inflammation of the bronchi, lobar pneumonia, poisonous snake bites, scalding injuries, acute hepatitis, urinary tract infection, boils, stoppage of menses due to heat in the blood, breast cancer, menopausal bleeding disorder.