Skip to Content
Merck
All Photos(1)

Documents

96992

Sigma-Aldrich

Cell Counting Kit - 8

for quantitation of viable cell number in proliferation and cytotoxicity assays

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

UNSPSC Code:
12352108
NACRES:
NA.32

Quality Level

100

shelf life

limited shelf life, expiry date on the label

shipped in

ambient

storage temp.

2-8°C

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.

related product

Product No.
Description
Pricing

Pictograms

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H341,H351

Hazard Classifications

Carc. 2 - Eye Irrit. 2 - Muta. 2 - Skin Irrit. 2

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Xianglong Yi et al.
Molecular vision, 17, 673-679 (2011-03-16)
1,25-Dihydroxyvitamin D(3) [1,25(OH)(2)D(3)] has recently been found to be involved in the development of autoimmune diseases. This study was to investigate the expression and potential role of 1,25(OH)(2)D(3) in the pathogenesis of Vogt-Koyanagi-Harada (VKH) disease. Blood samples were obtained from
Tetsuro Masuda et al.
Scientific reports, 5, 9170-9170 (2015-03-17)
Bone metastasis of breast cancer cells is a major concern, as it causes increased morbidity and mortality in patients. Bone tissue-derived CXCL12 preferentially recruits breast cancer cells expressing CXCR4 to bone metastatic sites. Thus, understanding how CXCR4 expression is regulated
Takashi Nojiri et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(13), 4086-4091 (2015-03-17)
Most patients suffering from cancer die of metastatic disease. Surgical removal of solid tumors is performed as an initial attempt to cure patients; however, surgery is often accompanied with trauma, which can promote early recurrence by provoking detachment of tumor
Xiao Deng et al.
Scientific reports, 7, 40256-40256 (2017-01-17)
Endothelial dysfunction and monocyte adhesion to vascular endothelial cells are two critical steps in atherosclerosis development, and emerging evidence suggests that protein sialylation is involved in these processes. However, the mechanism underlying this phenomenon remains incompletely elucidated. In this study
Rohit Chugh et al.
Science translational medicine, 4(156), 156ra139-156ra139 (2012-10-19)
Pancreatic cancer is one of the most lethal human malignancies with an all-stage 5-year survival frequency of <5%, which highlights the urgent need for more effective therapeutic strategies. We have previously shown that triptolide, a diterpenoid, is effective against pancreatic
View All Related Papers

Articles

Cell Viability and Proliferation Assays

Cell based assays for cell proliferation (BrdU, MTT, WST1), cell viability and cytotoxicity experiments for applications in cancer, neuroscience and stem cell research.

Cell Viability and Proliferation Assays

Cell based assays for cell proliferation (BrdU, MTT, WST1), cell viability and cytotoxicity experiments for applications in cancer, neuroscience and stem cell research.

Cell Viability and Proliferation Assays

Cell based assays for cell proliferation (BrdU, MTT, WST1), cell viability and cytotoxicity experiments for applications in cancer, neuroscience and stem cell research.

Cell Viability and Proliferation Assays

Cell based assays for cell proliferation (BrdU, MTT, WST1), cell viability and cytotoxicity experiments for applications in cancer, neuroscience and stem cell research.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service