Product Description: 3,5-DiBr-PAESA (sodium) is an ultrasensitive chelating agent used for the determination of silver (I) in water in the absence of interfering ions. It can also be used for the determination of copper (II)[1].
Formula: C16H17Br2N4NaO3S
References: [1]Fujimura K, et al. Flow injection spectrophotometric determination of sub-mg dm(-3) silver(I) in a strongly acidic solution containing concentrated copper(II) using a pyridylazo reagent. Anal Sci. 2011;27(12):1197-201.