Description

3-[(2,4-Diaminophenyl)Azo]-5-Sulphosalicylic Acid is a specialized azo dye intermediate and analytical reagent. This compound is valued for its ability to form stable, colored complexes with various metal ions, making it a critical component in specific chemical detection and synthesis processes. It is primarily required by manufacturers in the dye and pigment industry, as well as by analytical laboratories for use as a chromogenic agent in colorimetric assays and metal ion analysis.

Application

• Dye and Pigment Synthesis: A key intermediate for producing azo dyes, particularly those requiring specific shades and properties for textiles and inks.
• Analytical Chemistry Reagent: Used as a chromogenic agent in the colorimetric detection and quantification of specific metal ions in environmental and industrial samples.
• Complexometric Indicator: Functions as an indicator in titrations involving metal ions due to its distinct color change upon complexation.
• Research & Development: Employed in chemical research for developing new colorimetric sensors and diagnostic kits.
• Photographic Chemicals: Can be utilized in the formulation of certain specialized photographic chemicals.
• Laboratory Standard: Serves as a reference standard for quality control in the production of related dye intermediates.

Basic Information

Product Name	3-[(2,4-Diaminophenyl)Azo]-5-Sulphosalicylic Acid
CAS No.	94236-86-9
Molecular Formula	C13H12N4O6S
Molecular Weight	352.32 g/mol
Synonyms	5-Sulpho-3-[(2,4-diaminophenyl)azo]salicylic acid; 3-(2,4-Diaminophenylazo)-5-sulfosalicylic acid; 2-Hydroxy-5-sulfo-3-[(2,4-diaminophenyl)azo]benzoic acid; DASA; 2,4-Diaminoazobenzene-5'-sulfosalicylic acid; Azo Dye Intermediate for Metal Complexes; Chromogenic Reagent for Metals
EINECS	Contact for details

Quality Control

Our production of 3-[(2,4-Diaminophenyl)Azo]-5-Sulphosalicylic Acid adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques like HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in alkaline aqueous solutions

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