Certificate Of Analysis Description White,odorless,crystalline Powder or granules Assay % 98.0-100.5 Specific Rotation [α]D2S +95.5°- +98.0° Heavy metals mg/kg 10 max Lead mg/kg 5 max Loss on drying % 0.25 max PH Value 5.5-8.0 Conforms to FCC (IV) Standard of USA and Standard of Factory packing: 25kgs/carton