Oxazole Yellow, 1 mM in DMSO
Oxazole yellow, also know as YO-PRO-1, is a green-fluorescent, cell-impermeant nucleic acid stain with excitation/emission maxima of 491/509 nm when bound to nucleic acids. Oxazole yellow can be used as a early marker of apoptosis.
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7-AAD (7-aminoactinomycin D) is a fluorescent DNA binding dye that is membrane impermeant and therefore generally excluded from viable cells.
DAPI is a popular blue fluorescent DNA dye. The dye binds to the minor groove of dsDNA with approximately 20-fold fluorescence enhancement.
Hoechst 33258, Pentahydrate
Hoechst dyes are cell membrane-permeant, minor groove-binding blue fluorescent DNA stains. Hoechst dyes are widely used in cell cycle and apoptosis studies and also as nuclear counterstains.
NucSpot® 470 Nuclear Stain, 1000X in DMSO
NucSpot® 470 is cell membrane-impermeant, nuclear-specific green fluorescent DNA stain for the FITC channel.
Propidium Iodide (PI)
Propidium iodide (PI) is a membrane-impermeant nucleic acid intercalator. The dye is commonly used to selectively stain dead cells in a cell population and also used as a counterstain in multicolor fluorescent imaging.