Preparative Columns: SILICA 200 Å* are designed with high-purity, unmodified silica featuring a 200 Å pore size, ideal for preparative-scale normal-phase chromatography of larger molecules. These columns offer enhanced surface accessibility and high sample loading capacity, enabling efficient purification of complex compounds such as natural products, peptides, and intermediates. Engineered for scalability and batch-to-batch consistency, they are well-suited for pharmaceutical, biotechnology, and chemical process applications.