CAS 15839-70-0 appears in our catalog under these names: GDP-L-fucose/ 98.06% (existing batch purity), GDP–L–fucose, Guanosine diphosphate fucose 98%, GUANOSINE 5'-DIPHOSPHO-B-L-FUCOSE SODIU&, GDP-L-fucose, 98%, 98%. Offered by: TargetMol, GLPBio, Ambeed, Sigma-Aldrich, Chemat. Available pack sizes: 1mg, 5mg, 10mg, 25mg, 50mg, 100mg, 250mg, 1g.