| Product Name | Chinese Herb Medicine HPLC50% Silymarin Milk Thistle Extract |
| Appearance | Yellow to yellowish-Brown powder |
| Odour | Slight, specific |
| Plant Part to be Used | Seeds |
| Assay(UV/HPLC) | UV80%, Silybin+Isosilybin |
| Solubility in Water | Practically Insoluble |
| Solubility in Methanol and Ethanol | Soluble |
| Powder size | 80mesh, NLT90% |
| Loss on Drying | ≤4.0% |
| Total Ash | ≤0.5% |
| Heavy Metal | <20ppm |
| Silybin A & Silybin B | 40%~65% |
| IsosilybinA & IsosilybinB | 10%~20% |
| Silydianin & Silychristin | 20%~45% |
| Residual Solvent Acetone N-Hexane | <0.5% <0.029% |
| Total Plate Count | <1000cfu/g |
| Yeast & Mold | <100cfu/g |
| E.Coil | Negative |
| Salmonella | Negative |
| Storage | Store in cool & dry place. Avoid Direct Sunshine. |
Silymarin extracted by Ethyl Acetate soluble in the organic solvent, such as Methanol, Ethanol, Acetone and Ethyl Acetate and so on. But hardly soluble in water.
Ethyl Acetate as a kind of extract solvent is new compared to Acetone. Ethyl Acetate has the characteristic of lower toxicity compares with Acetone, it is more safety. If the same specification, the price of it will cheaper than Silymarin extracted by Ethanol. So Silymarin extracted with Ethyl Acetate is the first choice of lower toxicity of organic residue solvents and higher flavone among Silymarin products. It meets different customers'requirements
