Ready to use kit for rapid and sensitive protein staining of 1D and 2D SDS PAGE gels. It enables high contrast and optimal visualization and quantitation of proteins. After staining, proteins can be analyzed by mass spectrometry directly. The dye has optimal excitation at 302 and 470 nm, with maximum emission at approximately 610 nm. It can be excited with UV-transilluminators, 405, 445, 473-488 nm laser sources or 470 nm blue LED light source.