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Arsenazo III

SIAL/A92775 - 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
Empirical Formula (Hill Notation): C22H18As2N4O14S2
Molecular Weight: 776.37
EC Number: 216-788-6
MDL Number: MFCD00036695
Linear Formula: (HO)2C10H2(SO3H)2(N=NC6H4AsO3H2)2
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-A92775-1G 1 g
 $94.00
1/EA		 Add To Favorites
45-A92775-5G 5 g
 $246.00
1/EA		 Add To Favorites
45-A92775-10G 10 g
 $436.00
1/EA		 Add To Favorites
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: A92775-10G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: A92775-1G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: A92775-5G

 

λmax 530 nm
application(s) diagnostic assay manufacturing
hematology
histology
color brown to very dark brown, and Black
form powder
impurities <0.1% Ca
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+
InChI key UQHVTNUJRKELCE-NBHCHVEOSA-N
mp >320 °C (lit.)
Quality Level 200 
SMILES string Oc1c(N=Nc2ccccc2[As](O)(O)=O)c(cc3cc(c(N=Nc4ccccc4[As](O)(O)=O)c(O)c13)S(O)(=O)=O)S(O)(=O)=O
solubility ammonium hydroxide: 1 mg/mL
storage temp. room temp
technique(s) titration: suitable
Application: Arsenazo III has been used as a color forming reagent to determine uranium concentration.
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.
Packaging: 1, 5, 10 g in glass bottle
mp >320 °C (lit.)
Storage Temp. room temp
UNSPSC 12171500

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