Appearance:

Yellow powder with slight characteristic smell

Solubility:

Soluble in acetone and methanol, insoluble in water

Heavy metals:

10 ppm Max.                       

Sulphated ash:

0.6% Max.                         

Loss on drying (2 hours 130°C):

5.0% Max.                        

Mesh size:

5% through 80mesh                   

Extract Solvent:

Acetone                        

Silybin assay: (on dry basis)

80% Min. by UV                  

Silymarincontent/HPLC:USP29

(1)SilybinA.B.

(2)IsosilybinA.B.

(3)Silydianin&Silychristin

Residual Organic Solvents:

(1) Total

0.5% Max.                      

(2) Acetone

0.45% Max.                     

(3)Others

0.05% Max.                      

Microbiological test:

Total Plate Count

1,000cfu/g Max.                    

Moulds & Yeasts

100cfu/g Max.                      

E.Coli

Negative                          

Salmonella

Negative   

Appearance:

Light Yellow Fine Powder

Identification:

Positive Reaction

Heavy metals:

10 ppm Max.

Sulphated Ash:

1.0% Max.

Loss on drying:

4.0% Max.

Assay: ( Silymarin) by

UV: 40% Min.

Residue solvents:

Negative

Microbiological Test:

Total plate count:

1000/g Max

Yeast and mould:

100/g Max.

Escherichia Coli:

Negative

Salmonella:

Negative