Appearance White or off white powder Bulk density 0.10~0.20g/ml Particle size 98% pass through 60 mesh Loss on drying 2.0% max Ash content 2.0% max Betulinic Acid 98%min Heay metals 10ppm max Lead 3.0ppm max Arsenic 1.0ppm max Mercury 0.1ppm max Solvents residue Ethanol 5000ppm max Microbiological specifications Total Aerobic (cfu/g) 1000max Mold and Yeast (cfu/g) 100max Coliform Negative Salmonella Negative

white powder,Purity(HPLC) 98%min

Assay 98.0% min Identification Positive reaction Appearance Yellow fine powder Loss on drying 2.0% max Mesh size 80 mesh Heay metals 20ppm max Microbiological Total plate count ≤1000cfu/g Yeast & Mold ≤100cfu/g Salmonella Negative E. Coli Negative

亚油酸 Liolic acid 60-33-3 C18H32O2 94-96% Yellow with light red oily transparent liquid,94-96%

Colorless to light yellow transparent liquid,Assay:80%min

Appearance Colorless to light yellow liquid; cool and refreshing aroma with some smell of camphor Relative density (20/20℃) 0.921~0.924 Refractive index(20 ℃) 1.455~1.460 Specific optical rotation （20℃） -5°~ +5° Arsenic(based on As) 3ppm max Melting point 179℃ Solubility Soluble in 50% ethanol Heay metal(based on Pb) 10ppm max Assay 99.0% min

Appearance White powder, odorless Assay 90%min Glucose + fructose + sucrose 10% max PH 5.0-7.0 Total ash 0.4% max Heay metals 10ppm max Microbial Content Total plate count: 1000cfu/g max Mould and yeast: 100cfu/g max Colon bacillus: Negative Salmonella pr.25gram: Negative

Taraxasterol 1059-14-9 C30H50O 99%min white powder,99%min

Demethyleneberberine 25459-91-0 C19H18NO4 98%min Yellow crystal,98%min

Appearance Light yellow crystalline powder Assay(HPLC) 98%min Loss on drying 2.0% max

White crystalline or crystalline powder,no smell,taste bitter, Assay 98.0%-102.0%

Appearance White or almost white crystalline powder Assay(by Potentiometry) 98.0%-101.0%(dried substance) Solubiliy Practically insoluble in water、soluble in ethanol、sparingly soluble in methylene chloride.It shows polymorphism Identification IR or TLC and Coloured reaction Positive Appearance of Solution The solution is clear and not more intensely coloured than reference solution Y6 Tests Specific optical rotation +145°~+154°