Trans-resveratrol Product name: Trans-resveratrol Original plant:Root of Polygonum cuspidatum sieb.et zucc. CAS number:501-36-0 Assay (by HPLC):10%--99% Moleclar formula:C14H12O3 Molucular weight: 228.24 Solubility: Soluble in Alcohol, Acetone, Ethyl ether, and so on.