GelGreen is a sensitive, stable and environmentally safe green fluorescent nucleic acid dye designed to stain either dsDNA, ssDNA or RNA in agarose gels. GelGreen is far more sensitive than SYBR Safe. Unlike SYBR dyes, which are known to be unstable, GelGreen is very stable, both hydrolytically and thermally. GelGreen is compatible with either a 254 nm UV transilluminator or a gel reader equipped with visible light excitation (such as blue LED light box, 488 nm laser-based gel scanner, or Dark Reader). GelGreen can be used for either post-electrophoresis gel staining or precast gel staining. Properties: Liquid; Store at room temperature and protect from light.