Merck Arsenazo III

Arsenazo III

calcium-sensitive dye

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

Quality Level

200

form

powder

technique(s)

titration: suitable

불순물

<0.1% Ca

mp

>320 °C (lit.)

solubility

ammonium hydroxide: 1 mg/mL

λmax

530 nm

application(s)

diagnostic assay manufacturing
hematology
histology

저장 온도

room temp

SMILES string

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+

InChI key

UQHVTNUJRKELCE-NBHCHVEOSA-N

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