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A92775

Sigma-Aldrich

Arsenazo III

calcium-sensitive dye, Powder

Sinonimo/i:

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

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About This Item

Formula condensata:
(HO)2C10H2(SO3H)2(N=NC6H4AsO3H2)2
Numero CAS:
1668-00-4
Peso molecolare:
776.37
Beilstein:
5717957
Numero CE:
216-788-6
Numero MDL:
MFCD00036695
Codice UNSPSC:
12171500
ID PubChem:
24891431
NACRES:
NA.47

product name

Arsenazo III, calcium-sensitive dye

Livello qualitativo

200

Forma fisica

powder

tecniche

titration: suitable

Impurezze

<0.1% Ca

Colore

brown to very dark brown, and Black

Punto di fusione

>320 °C (lit.)

Solubilità

ammonium hydroxide: 1 mg/mL

λmax

530 nm

applicazioni

diagnostic assay manufacturing
hematology
histology

Temperatura di conservazione

room temp

Stringa SMILE

Oc1c(\N=N\c2ccccc2[As](O)(O)=O)c(cc3cc(c(\N=N\c4ccccc4[As](O)(O)=O)c(O)c13)S(O)(=O)=O)S(O)(=O)=O

InChI

1S/C22H18As2N4O14S2/c29-21-18-11(9-16(43(37,38)39)19(21)27-25-14-7-3-1-5-12(14)23(31,32)33)10-17(44(40,41)42)20(22(18)30)28-26-15-8-4-2-6-13(15)24(34,35)36/h1-10,29-30H,(H2,31,32,33)(H2,34,35,36)(H,37,38,39)(H,40,41,42)/b27-25+,28-26+
UQHVTNUJRKELCE-NBHCHVEOSA-N

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Categorie correlate

Applicazioni

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

Azioni biochim/fisiol

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.

Pittogrammi

Skull and crossbonesEnvironment
GHS06,GHS09

Avvertenze

Danger

Indicazioni di pericolo

H301 + H331,H410

Classi di pericolo

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1

Codice della classe di stoccaggio

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificati d'analisi (COA)

Lot/Batch Number
SHBR9058
SHBR7293
SHBR6479
SHBS2198
SHBR3097

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B R Morgan et al.
Clinical chemistry, 39(8), 1608-1612 (1993-08-01)
We describe an analytical procedure for determining serum calcium, using the ligand Arsenazo III in an aqueous alkaline medium. The choice of pH for the proposed technique differs from current procedures, which are for the most part carried out in
Analytica Chimica Acta, 68, 73-73 (1974)
R Kuroda et al.
Talanta, 37(6), 619-624 (1990-06-01)
A derivative spectrophotometric method has been developed for the simultaneous determination of microgram quantities of uranium and thorium with Arsenazo III in hydrochloric acid medium. The second-derivative absorbances of the uranium and thorium Arsenazo III complexes at 679.5 and 684.4
Silane coupling and mordanting as attachment techniques for pyridylazo and thiazolylazo ligands in the synthesis of adsorbents for uranium in seawater
Pooley GM, et al.
Adsorption Science & Technology, 36(3-4), 1144-1159 (2018)
Carmen Hogendoorn et al.
Applied and environmental microbiology, 84(8) (2018-02-18)
Recently, methanotrophic and methylotrophic bacteria were found to utilize rare earth elements (REEs). To monitor the REE content in culture media of these bacteria, we have developed a rapid screening method using the Arsenazo III (AS III) dye for spectrophotometric
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