Appearance Off-whte crystalline powder Capsaicinoids,HPLC 95%min Capsaicin(HPLC) 55%min Dihydrocapsaicin 20%min Other capsaicinoids 15% max Melting point 57℃-67℃ Loss on drying 1% max Heay metals 20ppm max Residue on ignition 1.0% max

Appearance White or slightly yellowish,crystalline powder Assay 99.5% min Melting point 81.0℃-83.0℃ Aroma Similar to taste of vanilla Solubility 1g in 3ml of 70% ethyl alcohol or 2ml 95% ethyl alcoho Heay Metals(as Pb) ≤10mg/kg Arsenic Content ≤3mg/kg After drying weightlessness 0.5% max

Appearance Light yellow to 0ff white powder Odor Characteristic Assay (HPLC) Piperine≥98.0% Sieve analysis NLT 95% pass 80 mesh Loss on Drying ≤5.0% Residue on Ignition ≤0.1% Hevy Metal

Appearance Light cream yellow powder Odor Characteristic Assay (HPLC) Baicalein≥98.0% Extract solvent Ethanol & water Sieve analysis NLT 90% pass 80 mesh Residue on Ignition ≤1.2% Heay Metal

Appearance White crystalline powder Odor Characteristic Complies Assay (HPLC) Solanine≥98.0% Sieve analysis NLT 95% pass 80 mesh Hevy Metal

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