199303
Resazurin sodium salt
certified by the BSC
Synonym(s):
7-Hydroxy-3H-phenoxazin-3-one-10-oxide sodium salt
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About This Item
Empirical Formula (Hill Notation):
C12H6NNaO4
CAS Number:
Molecular Weight:
251.17
Beilstein:
3794971
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
NACRES:
NA.47
Recommended Products
Agency
certified by the BSC
Quality Level
form
powder
composition
Dye content, 75%
solubility
1 M NH4OH: 1 mg/mL
λmax
380 nm (2nd)
598 nm
application(s)
diagnostic assay manufacturing
hematology
histology
storage temp.
room temp
SMILES string
[Na+].[O-]c1ccc2c(OC3=CC(=O)C=CC3=[N+]2[O-])c1
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
InChI key
IVGPGQSSDLDOLH-UHFFFAOYSA-M
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General description
Resazurin is a small N-oxide derivative of dihydroxyphenoxazone. It is a non-ionic dye containing a small and planar chromophore. It is a redox indicator and changes from bluish violet through pink to colorless upon reduction. It is also used as a pH indicator for Ph 3.5 to 6.5 wherein it changed from orange to bluish violet. It is commercially available as resazurin sodium salt, which is also known as 3H-Phenoxazin-3-one, 7-hydroxy-, 10-oxide, sodium salt. It forms the red, fluorescent hydroxyphenoxazone resorufin on reduction and colorless hydroresorufin on further reduction.
Application
For the measurement of metabolic activity and proliferation of living cells. The bioreduction of the dye reduces the amount of the oxidized form (blue) and concomitantly increases the fluorescent intermediate (red).
Resazurin is mostly used as a biological redox indicator. The bioreduction of the dye reduces the amount of the oxidized form (blue) and concomitantly increases the fluorescent intermediate (red). Its applications include:
- the measurement of metabolic activity and the proliferation of living cells
- the detection of bacterial reduction in milk
- in viability assays as a component of culture media for the detection of viable bacteria
- to determine the number of motile sperm in sheep semen
- to assay lactate dehydrogenase
- as an analytical reagent to quantify L-glutamate
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 199303-25G | 4061835570386 |
| 199303-1G | 4061838763112 |
| 199303-5G | 4061835570393 |
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