we are offering d-ribosecas no.: 50-69-1 assay:97.0% to 102.0%(hplc, dry basis) description:white crystals or crystallinepowder, 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 packing:1. packing material: polypropylene bag lining the polyethylene bag2. net weight: 25kgdrum storage:in cool and dry condition with original packing or well-closed container minimum order quantity:10gproduction capacity: 50000 kilograms per monthpacking method: secure and dicreet shippmentshipping methods : ems, fedex.tnt, dhl and so on. express courier: hkems, dhl, fedex, ups, tntpayment term: western union, , ttdelivery term :shipping, cargo, landdelivery time : safe &timely, around 1-3 days after paymentstorage: keep it under seal in cool and dark placecertificate: iso9001, kosher, reach brand:nanjian