Fig. 1 · Structure
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3,5-DiBr-PAESA sodium
Chromogenic Reagent
3,5-DiBr-PAESA sodium is a water-soluble pyridylazo-based chromogenic reagent designed for the sensitive detection of silver ions. This reagent facilitates the accurate quantification of sub-milligram silver levels in strongly acidic, high-copper systems when used in conjunction with EDTA, which masks copper ions, and bromide ions, which dissociate silver chelates. It is particularly suitable for applications in flow injection spectrophotometry.
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Specifications
| Manufacturer | Adooq Bioscience |
|---|---|
| CAS Number | 164581-25-3 |
| Applications | Chromogenic Reagent |
| Formula | C16H17Br2N4NaO3S |
| Molecular Weight | 528.19 |
| SMILES | O=S(CCCN(CC)C1=CC=C(C=C1)/N=N/C2=NC=C(C=C2Br)Br)(O[Na])=O |
Storage & Solubility
In Vitro Solubility
Reported Solubility
No reported solubility data are available for this product.
Preparing Stock Solutions
| Concentration | |
|---|---|
Values use four significant digits. Prepare to the final solution volume; this is not the volume of solvent to add.
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.