DRAQ7™ is a new far-red fluorescent DNA dye that ONLY stains the nuclei in dead and permeabilized cells. It can be combined with other common fluors, especially GFP fusions & FITC and PE labeled antibodies.
It can be excited by the blue, green or red light in a flow cytometer and red light in imaging instruments.
- Does not enter intact, live cells. It is excited by blue through red lasers.
- Non-toxic in long-term culture
- Ideal replacement for propidium iodide (and 7-AAD) having far better spectral properties: no UV excitation and no emission overlap with PE and homologues.
- Allows a new design of combination analysis for cell health and status.