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Resazurin sodium

A blue fluorogenic dye
Catalog #: B3296
SKU-Size Size Price Qty
B3296-1G 1 g
B3296-5G 5 g
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Product Details

Alternate Name 7-hydroxy-3H-phenoxazin-3-one-10-oxide, monosodium salt
Appearance Dark green to black powder
CAS # 62758-13-8
Molecular Formula C₁₂H₆NO₄ • Na
Molecular Weight 251.17
Purity ~85% by HPLC
Solubility ~0.5 mg/ml Ethanol, ~0.5 mg/ml DMSO
SMILES C1=CC2=C(C=C1[O-])OC3=CC(=O)C=CC3=[N+]2[O-].[Na+]
InChi InChI=1S/C12H7NO4.Na/c14-7-1-3-9-11(5-7)17-12-6-8(15)2-4-10(12)13(9)16;/h1-6,14H;/q;+1/p-1
PubChem CID 112939
MDL Number MFCD00005036
Handling Do not take internally. Wear gloves and mask when handling the product! Avoid contact by all modes of exposure.
Storage Conditions -20ºC
Shipping Conditions Gel Pack
USAGE For Research Use Only! Not For Use in Humans.


Resazurin is a blue fluorogenic dye used as a redox indicator in cell viability and proliferation assays for bacteria, yeast or mammalian cells. The blue form of the dye is irreversibly reduced by enzymes in viable cells to generate a highly red-fluorescent product, resorufin, which displays absorption/emission maxima ~575/585 nm and can be detected by flow cytometry, fluorescence microscopy, and high-throughput screening methods. Resazurin is minimally toxic to living cells, making it suitable for use in long-term cell culture.

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