Arsenazo III, 99,95%, analytical indicator

Description

Arsenazo III, 99,95%, analytical indicator
CAS
1668-00-4,
Chemical formula (HO)2C10H2(SO3H)2(N=NC6H4AsO3H2)2
Other names:
2,2′-(1,8-Dihydroxy-3,6-disulfonaphthylene-2,7-bisazo)bisbenzenearsonic acid, 2,7-Bis(2-arsonophenylazo)chromotropic acid
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.