Protein Standards and Ladders Products & Reviews

The MagicMark XP Western Protein Standard is specifically designed for easy and convenient protein molecular weight estimation directly on Western blots.

The Novex Sharp Pre-Stained Protein Standard is designed for accurate, easy, and convenient molecular weight estimation of a wide range of molecular weight proteins during SDS-PAGE and Western blotting.

The HiMark Pre-Stained Protein Standard is designed for analysis of high molecular weight proteins on NuPAGE Tris-Acetate gels.

Spectra Multicolor Broad Range Protein Ladder is a 4-color protein standard containing 10 prestained proteins (10 to 260kDa) for use in gel electrophoresis and Western blotting.

The Mark12 Unstained Standard allows the closest estimation of molecular weight of your sample protein over a wide molecular weight range.

The NativeMark Unstained Protein Standard is a ready-to-use protein standard designed for molecular weight estimation of proteins using native gel electrophoresis.

Spectra Multicolor High Range Protein Ladder is a mixture of eight (8) blue-, green-and orange-stained proteins (40 to 300kDa) for use as size standards for high-MW proteins in gel electrophoresis and Western blotting.