Active ingredient:trans-resveratrol Cas no.: 501-36-0 161,161 Description: Plant origin Resveratrol mainly comes from the dry roots of polygonum cuspidatum sieb . Et zucc., the fruit skins and seed of grape(vitis vinifera ) , the seeds of peanut(arachis hypogaea) etc Physical property: Resveratrol is tasteless white crystal (methanol), soluble in water, ethanol, acetone, etc.Melting point of 253-255 centigrade , sublimation point of 261 centigrade. Pharmacological effects Resveratrol is a natural antioxidant, .It can reduce blood viscosity, inhibit platelet condensation and diastolic blood vessels, keep the blood flowing, can prevent the occurrence of cancer and development, has prevention and cure function on atherosclerosis and coronary heart disease, ischemic heart disease, high blood lipid , can inhibit tumor. It has estrogenic effect, can be used in the treatment of breast cancer and other diseases. Fine white powder, nlt 95% pass 80 mesh, 10/20/25kg/drum in 2 plastic bags.And we may change the package as your requirement.