Cibacron Blue has been shown to bind dehydrogenases, kinases, serum albumin, interferons, several plasma proteins, and a variety of other proteins. It is a popular ligand for dye-ligand affinity chromatography. BioVision's Cibacron Blue-Agarose beads are prepared by covalent conjugation of Cibacron Blue 3G-A to cross-linked (4%) Agarose beads by a proprietary method. The beads can be used as a purification matrix for a variety of Cibacron Blue dye-binding proteins. In addition, they are useful for enrichment of low abundant non-Cibacron Blue binding proteins.