Silymarin(Milk Thistle P.E.) is extracted from the seed of Silybum marianum ma (L.). Milk Thistle is widely grown in Shanxi, Hebei and Jiangsu provinces in China. Silymarin is a series of flavoneoids and its main components include silybin, silychridthin and silybonol etc. It applies to the protecting of liver, reducing blood fat, anti-radialization, anti-cancer, anti-gastric ulcer. Specification: Latin Name: Silybum marianum(L.) Appearance: Yellow and brown powder Used Part: Seed of Milk Thistle Silymarin: CAS NO.: 65666-07-1 Silybin: CAS NO.: 22888-70-6 Active Ingredients: 1. Silymarin 80%UV(60%HPLC),Silybin and Iso Silybin >30 %HPLC 2. Total Flavone80%-15%UV 3. Silybin95%-99%HPLC Powder Size: 80 mesh Loss on Drying: < 5.0% Ash: < 2.0% Heavy metals: <10ppm Atomic Absorption Residual organic solvents: Total: Max.0.5% Gas Chromatography Acetone: Max.0.45% Gas Chromatography Other: Max.0.05% Gas Chromatography Microbiological Control: Total Bacteria: <1000CFU/G CP2005 Moulds& Yeasts: <1,00cfu/g CP2005 E. Coli: Negative CP2005 Staphyipcicus Aureus: Negative CP2005 Storage: Stored in a well-closed container away from moisture.. Packing: Packed in paper drum & plastic-bags inside. Net Weight: 25kg/grum Shelf Life: Validity Duration:2 years, in tight, light-resistant, cool and dry place.