Ethidium Bromide

Ethidium bromide, commonly employed in molecular biology laboratories, has been widely used for many years as a nucleic acid stain and a non-radioactive marker for identifying and visualizing nucleic acid bands in electrophoresis. A reddish-orange fluorescence can be detected under both long and short ultraviolet (UV) wavelengths of light, with increased fluorescence when bound to double-stranded DNA.