Desalting Resin is a crosslinked dextran gel (Sephadex G-25*) which is used to desalt crosslinked or biotinylated proteins, labeled antibody, or perform buffer exchanges. The bead size is 100-300 μm and 1 gram swells to 4-6 mL gel. The fractionation range for globular proteins is 1,000 - 5,000 MW and for dextrans is 100 - 5,000 MW. *Sephadex is a registered trademark of GE Healthcare.