CelloPure SP is a strong cation exchanger chromatography media based on spherical particles manufactured from highly crosslinked cellulose. Each offers excellent flow properties, mechanical stability, and chemical resistance. In this ion exchange resin, the sulphopropyl (SP) functional group is attached to the cellulose beads, which remains charged and maintains consistently high capacity over the entire working range, pH 3 to 11. These ion exchangers are ideally suited for both laboratory and process scale chromatography of proteins, peptides, and other biomolecules.