Preparative Columns: CYANO 300 Å* are designed for the high-efficiency purification of large polar molecules, peptides, and biomolecules. With a cyano (CN) bonded stationary phase and a wide 300 Å pore size, these columns ensure optimal interaction and accessibility for high molecular weight compounds. Suitable for both normal-phase and reversed-phase chromatography, they offer excellent selectivity, high loading capacity, and consistent performance—making them ideal for preparative applications in pharmaceutical, biotechnological, and research laboratories.