Ethidium bromide is a nucleic acid stain used in agarose gel electrophoresis and PAGE. It's also a DNA polymerase inhibitor. Ethidium bromide binds to single-stranded and triple-stranded DNA, which inhibits DNA polymerase. It's also an antiprotozoal and fluorescent label for DNA. Ethidium bromide has other synonyms, including: 5-Ethyl-3,8-diamino-6-phenylphenanthridinium bromide Homidium bromide 3,8-Diamino-5-ethyl-6-phenylphenanthridinium bromide EtBr
