| Color | Purple |
| Form | Powder |
| Flavor, Taste & Odor | Characteristic |
| Active Ingredients | Polyphenol, resveratrol |
| Assay (dry basis) | 30%, 50% Polyphenol; 0.5%, 5% Resveratrol |
| Assay Method | Folin-C, HPLC |
| Particle Size | 100% pass 80 mesh |
| Solubility | Solvent in ethanol & water |
| Loss on Drying | ≤ 5.0% |
| Ash Content | ≤ 5.0% |
| Heavy Metals | ≤ 20 ppm |
| Arsenic (As) | ≤ 2 ppm |
| Lead (Pb) | ≤ 2.0 ppm |
| Total Plate Count | < 1000 cfu/g |
| Yeast and Moulds | < 100 cfu/g |
| Salmonella | Negative |
| Escherichia. Coli | Negative |
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