Protein Molecular Weight Markers

Browse through our collection of protein molecular weight markers, essential tools for gel electrophoresis and Western blotting. These markers contain peptide or protein molecules with pre-defined molecular weights, serving as size standards. Our catalog includes kits, markers, and ladders with low-range and high-range standards, available in both unstained and pre-stained varieties. Choose from a range of options, including broad-range ladders (10-260 kDa), high-range ladders (40-300 kDa), and low-range ladders (17-40 kDa). These markers are designed for accurate molecular weight estimation of proteins during SDS-PAGE and Western blot analysis. Learn more about protein ladders