Appearance: white crystalline powder Assay: 98.0%-102.0% Specific rotation: +84.0¡ã~ +87.5¡ã Moisture: 2.0% max Ph of 10% aqueous solution: 5~8 Methanol0.1% max Arsenic(as): 3mg/kg max Lead: 1mg/kg max Copper: 10mg/kg max Iron:10mg/kg max Ignited residue:0.7% max hydrolysis products: 0.1% max Related substance: 0.5% max Heavy metal10mg/kg max Triphenylph Osphine oxide: 150mg/kg max Total aerobic Count: 250cfu/g max E.Coli: mpn/g
