|Ethidium Bromide C21H20BrN3 CAS 1239-45-8 is used for detection of DNA in electrophoresis. Be careful not to contaminate your laboratory wit EtBr as it is genotoxic. The best way to detect Ethidium Bromide contamination is to use a UV black light. The EtBr stain can be safely removed with bleach of sodium hypochlorite, NAOCl that will destroy the Ethidium. GENTAUR's EtBr Destroyer Bag or sprayer will reduce it to a non mutagenic non fluorescent solution.The volume (ml) in milliliters of buffered % w/v solutions at the medium pH are also used for DNA extraction Organic (Phenol-Chloroform) Extraction, Non-Organic (Proteinase K and Salting out), Chelex (Ion Exchange Resin) Extraction, EDTA or PBS aqueous.