Protein adsorbent including a colored compound containing a quaternary ammonium especially amidinium or guanidimium cationic group and a cellulose reactive group

摘要

A colored compound containing a cationic group and a cellulose reactive group, especially a compound of the formula:PPA-- Y--B IPPY'--B IIPPwhereinP PA is the cationic group;PPY is a chromophore; PPY' is a cationic chromophorePPandP PB is the reactive group, which is suitable for the preparation of a protein adsorbent or precipitant for use in the separation of mixtures of proteins.