Inertsil CX Analytical Columns manufactured by GL Sciences Inc. have benzenesulfonyl groups bonded to silica gel by an alkyl chain. The sulfony groups at the end of the structure offer cationic functions required for the cation exchange chromatography. It is mainly used for analyses of basic compounds. Inertsil CX is manufactured under strict qualitycontrol to deliver superior lot-to-lot reproducibility as the same as Inertsil AX. The high ion exchange capacity as well as high retentivity and selectivity of Inertsil CX make it ideal for analysis of amino acids and nucleobases.