| 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 |