Appearance White crystalline powder Identification Perfect Assay 98.0~101% Cleanness and color of solution Cleanness Specific rotation +160 ~ +164 Reducing Sugars 1.0%max Analysis product Should be up to snuff Moisture 14%max Heavy metal 5ppmmax Residue on ignition 0.1%max Chloride Should be up to snuff The total Aerobic count 1000ceu/gmax The total Moulds and yeasts 100ceu/gmax Escherichia coli and Salmonella Negative Result: Confirm to USP 25 STANDARD