Macro-Prep CM Resin is a weak cation exchange resin that meets the demands of analytical, semipreparative, and process-scale applications. This rigid, macroporous hydrophilic support provides exceptional capacity, resolution, and throughput in a chemically and mechanically stable form. Macro-Prep CM Resin operates well at low and medium pressures and exhibits minimal volume changes in response to variations in pH or ionic strength. It provides consistent and reproducible results.