Live/Dead Cell Viability Assay Kit (for Mammalian Cells)

Easy, non-radioactive assay kit to measure cell viability/proliferation, cytotoxicity and apoptosis by microscopy/FACS analysis.

K502 is available from Abcam as ab287858.
Catalog #: K502 | abID: ab287858

Product Details

abID ab287858
Cat # +Size K502-100
Size 100 assays
Detection Method Fluorescent microscopy or FACS analysis (Ex/Em 485/530 nm) to detect stained live cells; (Ex/Em 495/635) to detect stained dead cells
Species Reactivity Mammalian
Applications Screening/studying/characterization of stimulators/inhibitors that affect cell viability.
Features & Benefits Easy to use Protocol
Non-radioactive detection. Detect using either microscopy or FACS.
Measure Cell Proliferation, cell viability, chemotaxis, cytotoxicity and apoptosis
Kit Components • Assay Buffer
• Live Cell Staining Dye
• Dead Cell Staining Dye
Storage Conditions -20°C
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.


Quantification of number of live and dead cells is an indispensable tool in cell biology research. BioVision’s Live/Dead Cell Viability Assay Kit, provides a two-color fluorescence method that is based on the simultaneous determination of live and dead cells using two different dyes. Live cell dye easily penetrates intact, • Live cells and intracellular esterase hydrolyzes the dye to produce a hydrophilic, strongly fluorescent compound that is retained in the cell cytoplasm which can be measured at Ex/Em = 485/530 nm. Dead cell dye enters damaged cell membranes and undergoes a 40-fold enhancement of fluorescence upon binding to nucleic acid, thereby producing a bright red fluorescence (Ex/Em = 495/635 nm) in dead cells. This assay kit provides an easy-to-use, non-radioactive, histological and FACS-based method for measuring cell proliferation, cell viability, chemotaxis, cytotoxicity and apoptosis.

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What is the nature of the live cell dye?
The actual composition of the dye is proprietary information, but it works similar to Calcein AM.
Can the kit work on bacteria or yeast cells?
The kit has been standardized for mammalian cells only
What is the exact volume of sample required for this assay?
There is no specific volume we can recommend for the amount any sample to be used since it is completely sample concentration and quality based. You have to do a pilot expt with multiple sample volumes to determine the optimal volume which gives a reading within the linear range of the standard curve. Please refer to the citations for this product to see what other clients have used with similar sample types.
Do you have trial sizes of this kit?
Unfortunately, we do not have trial sizes of this kit available. However, if you are based in the US or Canada, we will give you a 10% off list price introductory discount on its purchase price. If you are based out of this area please contact your regional BioVision distributor.
What is the shelf life of this kit?
 BioVisions’s assay kits expire 6 months from the date of shipment. Some components of the kit may expire sooner as mentioned in the data sheet
Can we purchase individual components of this kit?
Yes, you can purchase any of the kit's components without the whole kit. Please refer to the component Cat #s mentioned on the datasheet for ordering.
Can we use an alternate buffer for sample preparation (cell lysis, sample dilutions etc)?
Our assay buffers are optimized for the reactions they are designed for. They not only contain some detergents for efficient lysis of your cells/tissue, but also contain some proprietary components required for the further reactions. Therefore, we highly recommend using the buffers provided in the kit for the best results.