DRAQ5™ (Deep Red Anthraquinone 5) is a far-red fluorescent DNA dye. DRAQ5™ is cell permeable and may be used to stain nucleic acids in live or fixed cells for cell cycle analysis by DNA content, nuclear visualization, or discrimination of nucleated cells from debris or enucleated cells. DRAQ5™ has an excitation wavelength maxima of 598/646 nm, but can also be suboptimally excited by the 488 nm laser. Its emission wavelength maximum is 681 nm, or 697 nm when intercalated with double stranded DNA.