Description

2-(5-Bromo-2-Pyridylazo)-5-[n-n-Propyl-n-(3-Sulfopropyl)Amino]Phenol is a high-purity chromogenic reagent and complexometric indicator belonging to the pyridylazo family. This compound is valued for its high sensitivity and selectivity in forming stable, colored complexes with specific metal ions, enabling precise analytical detection. It is primarily needed by analytical chemistry laboratories and industrial quality control units for trace metal analysis and research applications.

Application

• Spectrophotometric Reagent: Used for the sensitive colorimetric determination of trace metal ions such as cobalt, nickel, and copper in various matrices.
• Complexometric Titration Indicator: Serves as a metallochromic indicator in EDTA titrations for the endpoint detection of specific cations.
• Research & Development: Employed in academic and industrial R&D for developing new analytical methods and studying metal-ligand interactions.
• Environmental Analysis: Applied in testing water, soil, and industrial effluent samples for heavy metal contamination.
• Pharmaceutical QC: Utilized in the quality control of active pharmaceutical ingredients (APIs) and raw materials to detect catalytic metal residues.
• Industrial Process Control: Monitors metal ion concentrations in chemical manufacturing, electroplating baths, and alloy production processes.

Basic Information

Item	Details
Product Name	2-(5-Bromo-2-Pyridylazo)-5-[n-n-Propyl-n-(3-Sulfopropyl)Amino]Phenol
CAS No.	91599-24-5
Molecular Formula	C16H19BrN4O4S
Molecular Weight	443.32 g/mol
Synonyms	5-Bromo-PAPS; 2-(5-Bromo-2-pyridylazo)-5-[N-propyl-N-(3-sulfopropyl)amino]phenol; PAPS (5-Bromo derivative); Bromo-PAPS; 5-Bromo-2-pyridylazo-5-(N-propyl-N-sulfopropylamino)phenol; 91599-24-5; 2-(5-Bromo-2-pyridylazo)-5-(N-propyl-N-(3-sulfopropyl)amino)phenol
EINECS	Contact for details

Quality Control

Our 2-(5-Bromo-2-Pyridylazo)-5-[n-n-Propyl-n-(3-Sulfopropyl)Amino]Phenol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC and spectrophotometric purity checks, to ensure it meets the high standards required for analytical reagent use. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and performance characteristics is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive and should be handled under appropriate conditions to prevent decomposition.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0 %
Absorbance (Lambda max)	Conforms
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.