D-Ribose CAS No.: 50-69-1 Assay:97.0% to 102.0%(HPLC,dry basis) Description: White crystals or crystalline powder,Practically insoluble in alcohol and in ether. Specific Rotation:-18.0 ~-22.0° Loss on drying:≤3.0% Residue on Ignition:≤0.2% Heavy Metals(Pb):≤10ppm Arsenic(As2O3):≤2ppm Lead(Pb):≤1ppm State of solution:≥95.0% Other saccharide:Not detectable(chromatographically) The Plate Count:≤100cfu/g Packing: 1. Packing Material: Polypropylene bag lining the polyethylene bag 2. Net Weight: 25kg/drum Storage: In cool and dry condition with original packing or well-closed container