Appearance White to off-white crystal or flake crystal Assay 98%min Identification Positive Melting point 147-150℃ Loss on drying 1.0% max Acidity 0.5ml max Residue on ignition 0.2% max Mould 100/g max Total bacteria 1000/g max

Appearance Yellow or light yellow sheet, one side has a certain gloss, odorless tasteless, insoluble in water or ethanol,soluble in 80-92% ethanol or 70-80% acetone. Identification Positive Assay, on dry basis(as Nitrogen content) 14.0%min Ether insoluble material 2.0% max Loss on drying 10.0% max Residue on ignition 0.3% max Hevy metals Complies Microbe limit Bacterial:1000/G max Fungi:100/G max Escherichia: N.D

Stachydrine hydrochloride 471-87-4，4136-37-2 C7H14ClNO2 98%min white crystal ,98%min

Leonurine hydrochloride 24697-74-3 C14H22CIN305 98.31%min White crystalline powder, 98.31% min

Appearance White crystalline powder Assay 98%min Loss on drying 1.0% max Specific optical rotation +98.0˚~+105.0˚ Chloride 0.02% max Sulfate 0.02% max Residue on ignition 0.1% max Heay metals(as Pb) 10ppm max

Appearance White crystalline powder Visual Assay 98%min HPLC-E Odor Characteristic Organoleptic Powder size 100% through 30mesh 30mesh screen Bulk density 0.40-0.50g/cm3 USP34-NF29 Loss on drying 13%-17% USP34-NF29 Melting point 78-82℃ USP34-NF29 Optical Rotation 103-108。 USP34-NF29 PH 5.50-6.50 USP34-NF29 Residue on ignition 0.1% max USP34-NF29 Residue Ethanol 0.5% max USP34-NF29 Total heay metals 10μg/g max USP34-NF29 As 2μg/g max ICP-MS Cd 2μg/g max ICP-MS Pb 2μg/g max ICP-MS Hg 0.5μg/g max ICP-MS Total plate count 1000cfu/g max USP34-NF29 Molds and Yeasts 100cfu/g max USP34-NF29 Salmonella Absence USP34-NF29 E.Coli Absence USP34-NF29 Staphylococcus aureus Absence USP34-NF29

Appearance Off-white to white powder Assay,HPLC 99%min Loss on drying 1% max HPLC testing condition： Wvelength 275nm

Appearance White crystal, no impurities, sweet taste, no peculiar smell Trehalose content （%） ≥99% PH 5.0~6.7 Burning residual (%) ≤0.02 Dry weight loss (%) ≤1.0 Lead (Pb) (mg/kg) ≤1.0 Arsenic (As) (mg/kg) ≤1.0 The total number of colonies (cfu/g) ≤400 pathogenic bacteria Not detected Coliform bacteria MPN/100g negative

Appearance Yellow powder Assay,HPLC Quercetin Dihydrate(On dry basis) 95.0%min Loss on drying(3h at 120℃) 12.0% max Ash(3h at 600℃) 0.3% max Melting point 305℃-315℃ Bulk density 0.20gm/cc min Tapped density ≥0.30gm/cc Reducing sugars Not be detected Heay metals 10ppm max Lead 3ppm max Cadmium 1ppm max Arsenic 1ppm max Mercury 0.1ppm max Residue solvents Meets USP Total bacterial count 1000cfu/g max Yeast&Mould 300cfu/g max Escherichia coli presence Negative Salmonella Negative Coliforms 10cfu/g max

Appearance White Powder Or Free-Flowing Granules; Solubility Slightly in alcohol, easily in water Identification The Infrared Absorption Spectrum Of The Preparation Of The Test Specimen Exhibits Max Only At The Same Wvelength As That Of A Similar Preparation Of The Corresponding Usp Ref. Standard Conductivity Not more than 20μS • cm-1 Clarity

Appearance White fine powder Assay 99.0% min Odor Characteristic Taste Characteristic Drying Method Vacuum drying Particle Size NLT100%Through80 mesh Loss on Drying ≦5.0% Ash (Sulphated Ash) ≦5.0% Total Heay Metals ≤10ppm Arsenic(As) ≤1ppm Lead(Pb) ≤1ppm Mercury(Hg) ≤0.05ppm Cadmium (Cd) ≤1ppm Total Plate Count ≤10,000cfu/g Total Yeast & Mold ≤1,000cfu/g E. Coli Negative Salmonella Negative Staphylococcus Negative

Appearance yellowish crystals powder Coupling value 98%min Suphated ash 0.5%max Loss on drying 1%max Melting Point 258-260°C Heay Metals 20ppm max Camptothecin 0.9%max