YMC-Pack ODS-A in 120Å pore size is the first choice of many chromatographers for high performance reversed phase separations.  It has selectivity for the separation of a wide range of organic compounds found in pharmaceutical, chemical, and biotechnology industries.  ODS-A is a high-coverage, fully-endcapped C18 phase which exhibits exceptional lot-to-lot reproducibility.  ODS-A columns are noted for their high efficiency, selectivity, and long lifetimes.