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96992 Sigma-Aldrich

Cell Counting Kit - 8

for quantitation of viable cell number in proliferation and cytotoxicity assays

  •  NACRES NA.32

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Properties

Related Categories Biochemicals and Reagents, Cell Culture, Cell Viability, Detection kits, Fluorescent and Colorimetric Assay Kits,
Quality Level   100
shelf life   limited shelf life, expiry date on the label
shipped in   ambient
storage temp.   2-8°C

Description

Application

Cell Counting Kit-8 (CCK-8) allows convenient assays using WST-8 (2-(2-methoxy-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium, monosodium salt), which produces a water-soluble formazan dye upon bioreduction in the presence of an electron carrier, 1-Methoxy PMS. CCK-8 solution is added directly to the cells, no pre-mixing of components is required. WST-8 is bioreduced by cellular dehydrogenases to an orange formazan product that is soluble in tissue culture medium. The amount of formazan produced is directly proportional to the number of living cells. Since the CCK-8 solution is very stable and it has little cytotoxicity, a longer incubation, such as 24 to 48 hours, is possible.
Cell Counting Kit-8 allows sensitive colorimetric assays for the determination of the number of viable cells in the proliferation and cytotoxicity assays. The detection sensitivity is higher than any other tetrazolium salts such as MTT, XTT or MTS.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Pipette Controller from Brand
Protocols & Articles

Articles

Cell Viability and Proliferation Assays

Assays to measure cellular proliferation, cell viability, and cytotoxicity are commonly used to monitor the response and health of cells in culture after treatment with various stimuli. The proper ch...
Keywords: Cancer, Cell culture, Cell disruption, Cell proliferation, Click chemistry, Enzyme-linked immunosorbent assay, Flow cytometry, Glycolysis, Immunocytochemistry, Immunohistochemistry, Indicators, Microscopy, Nucleic acid denaturation, Reductions, Solvents, Western blot

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Peer-Reviewed Papers
15

References

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