Resveratrol(3,5,4'-trihydroxy-trans-stilbene)is a stilbenoid, a type of natural phenol, and a phytoalexin produced naturally by several plants.
| ITEM | STANDARD | 
| Resveratrol(HPLC) | >=98.0% | 
| Emodin(HPLC) | =<0.5% | 
| Appearance | White Powder | 
| Odor & Taste | Characteristic | 
| Particle size | 100% through 80 mesh | 
| Loss on drying | =<0.5% | 
| Sulphated Ash | =<0.5% | 
| Heavy metals | =<10ppm | 
| Arsenic | =<2.0ppm | 
| Mercury | =<0.1ppm | 
| Total Plate Count | =<1,000cfu/g | 
| Yeasts & Molds | =<100cfu/g | 
| E.coli | Negative | 
| Salmonella | Negative |