| Analysis Items | Specifications | Results | Methods used |
| Identification | Positive | Conforms | TLC |
| Appearance | Fine brown to brownish yellow powder | Conforms | Visual test |
| Odor & Taste | Characteristic, Astringent and Bitter | Conforms | Organoleptic test |
| Bulk Density | 35-65g/100ml | Conforms | ASTM D1895B |
| Particle Size | NLT 98% through 80 Mesh | Conforms | AOAC 973.03 |
| Solubility | Soluble in ethanol & water solution | Conforms | Visual |