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Form	MW
3,5-DiBr-PAESA This page	506.21
3,5-DiBr-PAESA sodium	528.19

3,5-DiBr-PAESA

Chromogenic Reagent

3,5-DiBr-PAESA is a water-soluble pyridylazo chromogenic reagent designed for the sensitive detection of silver ions. It functions by masking copper ions with EDTA and dissociating silver chelates using bromide ions, allowing for precise quantification of silver at sub-milligram levels in strongly acidic high-copper environments. This reagent is particularly useful in flow injection spectrophotometry applications for environmental and analytical chemistry research.

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Specifications

Manufacturer	Adooq Bioscience
CAS Number	100743-65-5
Applications	Chromogenic Reagent
Formula	C₁₆H₁₈Br₂N₄O₃S
Molecular Weight	506.21
SMILES	O=S(O)(CCCN(CC)C1=CC=C(C=C1)/N=N/C2=NC=C(C=C2Br)Br)=O

Storage & Solubility

In Vitro Solubility

Reported Solubility

No reported solubility data are available for this product.

Preparing Stock Solutions

Stock preparation is unavailable for this product molecular weight.

Calculated stock concentrations do not establish solvent solubility. Refer to the reported solubility data for experimental guidance.

Storage

Store powder at -20°C, keep desiccated.
In powder form, the chemical is stable for 36 months.
In solution, store at -20°C and use within 1 month to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.