CAS number： 22888-70-6;65666-07-1
Molecular formula： C25H22O10
molecular weight： 482.4362
Chemical structure：
| CERTIFICATE OF ANALYSIS | |||
| Product Name | Milk Thistle Extract | Shlef Life | 2 years |
| Items | Standards | Results | |
| Description | Yellowish crystalline powder | Comply | |
| Solubility | Soluble in acetone and ethanol, insoluble in water | Comply | |
| Identification | UV:similar to the reference standard | Comply | |
| Clarity and color of solution | 1% Methanol should be clear | Comply | |
| Heavy metal | max 10ppm | ＜10ppm | |
| Arsenic | ≤1ppm | ≤1ppm | |
| Sulfate Ash | max 0.6% | ＜0.6% | |
| Loss on drying(2 hours 130℃) | max 3.0% | 2.5% | |
| ASSAY Silymarin（Dried) | min.80% | 81.3% | |
| ASSAY Silibinin + Isosilibinin | min.30% | 32.4% | |
| Residual solvents | |||
| Acetone | max.5000ppm | Comply | |
| Hexane | max.290ppm | Comply | |
| Pesticide Residues | Complies DAB10 | Comply | |
| Microbiological test | |||
| Bacteria | max.1000/g | Comply | |
| Molds | max.100/g | Comply | |
| E.coli | no | No detected | |
| Salmonella | no | No detected | |
| Conclusion | Comply To DAB10 | ||
