1.Origin The above ground part or root of compositae perennial herb cirsium Japonicum dc. 2. Detection method and purity : Adopt hplc detection method with a purity of 98.5%. 3. Appearance : Buff crystalline powder. 5.Function : It is used in cooling blood and hemostasis, detoxication and removing carbuncle. Its the common hemostatics in clinic. 5. Molecule weight and formula : MW: 622.571 | MF: C29H34O15 One gram for a package.