Appearance White or off-white powder Assay,dried base 99.0%min Odor&Taste No special odor Solubility Soluble in chloroform and ethanol, insoluble in water Flash point 326-327 Total impurity 2.0% max Individual impurity 0.5% max Loss on drying 0.5% max Residue on ignition 0.1% max metals 20ppm max Microbiology Total Plate count: 1000cfu/g max Yeast&Mold: 100cfu/g max E.Coli: Negative S.Aureus: Negative Salmonella: Negative