Identification:             Visual,compares to type sample positive by PHLC

Loss on drying:           0.5%max

Specific rotation:          -20.8~ -19.0°

Residue on ignition:     0.5% max

Heavy metal:             10ppm max

Arsenic:                 2ppm max

Content:                 97~101%

Package: Inside packing-edible polyethylene plastic film edible

Out packing-carton

Net weight:25kg

Gross weight:28kg

D-ribose