7-AAD Viability Staining Solution

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Other Names
Viability dye, dead cell exclusion dye, cell viability dye
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420403 200 tests ¥5,000
420404 500 tests ¥10,000

7-AAD (7-amino-actinomycin D) has a high DNA binding constant and is efficiently excluded by intact cells. It is useful for DNA analysis and dead cell discrimination during flow cytometric analysis. When excited by 488 laser light, 7-AAD fluorescence is detected in the far red range of the spectrum (650 nm long-pass filter).

Product Details
Technical data sheet

Product Details

PBS, pH 7.2 with 0.09% (w/v) sodium azide.
CAUTION: 7-AAD is a potential carcinogen. It is recommended that the user wear protective clothing, gloves, and eye/face protection in order to avoid contact with skin and eyes.
50 µg/ml
Storage & Handling
Protect from light. Store between 2°C and 8°C.

FC - Quality tested

Recommended Usage

For dead cell exclusion, resuspend cell pellet in 0.5 mL of Cell Staining Buffer and add 5 µl of 7-AAD per million cells and incubate for 5-10 minutes in the dark before analysis. The analysis of the cells should be done as soon as possible after the incubation with the dye.

We recommend utilizing our Fluorescence Spectra Analyzer to determine compatibility of 7AAD with other fluorochromes.


Excitation Laser
Blue Laser (488 nm)
Application Notes

7-AAD Viability Staining Solution can be used as a viability probe for methods of nonviable cell exclusion.

Additional Product Notes

View more applications data for this product in our Scientific Poster Library.

Application References

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Antigen Details

Biology Area
Cell Biology, Cell Cycle/DNA Replication, Cell Proliferation and Viability, Neuroscience
Antigen References

1. Schmid I, et al. 1992. Cytometry. 13:204

Gene ID

Related FAQs

Why is washing not recommended after the addition 7-AAD or PI addition when assessing viability?

These dyes bind in equilibrium with DNA. Therefore, external dye concentration must be maintained during analysis and the dye should not be washed out.

Go To Top Version: 2    Revision Date: 05/21/2014

For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.


*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, www.biolegend.com/ordering#license). BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.


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