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Resazurin, sodium salt
CAS 62758-13-8
Resazurin is a non-toxic, water-soluble and redox-sensitive dye that changes from its blue/non-fluorescent state to pink/highly-fluorescent upon reduction to resorufin by many biological processes. Resazurin added to viable cells become reduced via an as yet unknown mechanism by enzymatic or chemical reactions in cells. This feature is widely used for measuring cell proliferation, viability and cytotoxicity. Resazurin may be added at any time during the culture period. For measurement of cell proliferation, it is best to add resazurin during log phase growth. Incubation times may vary depending on the metabolic rates of the cell lines being tested. Fluorescence can be read using 544 nm/590 nm filter set. Absorbance can be read using a spectrophotometer set at 570 nm.
Chemical structure for Resazurin, sodium salt *CAS 62758-13-8*
Chemical structure for Resazurin, sodium salt *CAS 62758-13-8*
CatalogSize
Price
Quantity
15700100 mg
Price
 
Physical properties

Molecular weight251.17
SolventDMSO
Spectral properties

Absorbance (nm)605
Excitation (nm)571
Emission (nm)584
Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure
UNSPSC12352200
CAS62758-13-8
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Page updated on October 4, 2025