D-ribose

We are offering 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:≤100cfug storage: in cool and dry condition with original packing or well-closed container