AdipoGen Arsenazo III
Chemical. CAS 1668-00-4. Formula C22H18As2N4O14S2. MW 776.37. Synthetic Arsenazo III is a calcium-sensitive dye. It is used for the determination of Ca2 in micromolar amounts, to investigate calcium transport in permeabilized cells and determination of serum calcium. Also potentially useful for the spectrophotometric determination of uranium and thorium.