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A92775 Sigma-Aldrich

Arsenazo III

calcium-sensitive dye

Synonym: 2,2′-(1,8-Dihydroxy-3,6-disulfonaphthylene-2,7-bisazo)bisbenzenearsonic acid, 2,7-Bis(2-arsonophenylazo)chromotropic acid

  • CAS Number 1668-00-4

  • Linear Formula (HO)2C10H2(SO3H)2(N=NC6H4AsO3H2)2

  • Molecular Weight 776.37

  •  Beilstein/REAXYS Number 5717957

  •  EC Number 216-788-6

  •  MDL number MFCD00036695

  •  PubChem Substance ID 24891431

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Properties

Related Categories A, Analytical Reagents, Analytical/Chromatography, Cell Biology, Hematology and Histology,
InChI Key   UQHVTNUJRKELCE-NBHCHVEOSA-N
form   powder
impurities   <0.1% Ca
mp   >320 °C (lit.)
solubility   ammonium hydroxide: 1 mg/mL
absorption   λmax 530 nm

Description

Application

Arsenazo III has been used as a color forming reagent to determine uranium concentration.

Packaging

1, 5, 10 g in glass bottle

Biochem/physiol Actions

Arsenazo III is a metallochromic dye. Arsenazo III is used in the determination of calcium in biological samples. It is used to evaluate calcium transport in permeabilized cells. It is also used for the detection of rare earth metals (polyvalent metal ions). Arsenazo III is used for the spectrophotometric determination of uranium and thorium.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 3465 6.1 / PGII
WGK Germany 
3

Documents

Certificate of Analysis

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Certificate of Origin

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Milli-Q® Water Purification Solutions
Protocols & Articles
Peer-Reviewed Papers
15

References

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