Description

Benzenesulfonic acid, 2-[(4-aminophenyl)amino]-5-nitro-, diazotized, coupled with diazotized 2-amino-4,6-dinitrophenol, diazotized 3-amino-4-hydroxybenzensulfonic acid and resorcinol, sodium salts is a complex, multi-component azo dye intermediate. This compound is engineered to deliver precise chromophoric properties and is critical for synthesizing high-performance dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking to produce consistent, vibrant colors with specific fastness properties.

Application

• Primary intermediate for the synthesis of high-value azo dyes and pigments used in textile coloring.
• Key component in the manufacture of inks for packaging, printing, and specialty applications.
• Precursor for colorants in industrial coatings and paints requiring specific light and chemical resistance.
• Research and development chemical for creating novel chromophores and functional dyes.
• Potential use in the coloration of plastics and polymers where thermal stability is required.
• Specialty applications in analytical chemistry as a reagent or standard.

Basic Information

Item	Details
Product Name	Benzenesulfonic acid, 2-[(4-aminophenyl)amino]-5-nitro-, diazotized, coupled with diazotized 2-amino-4,6-dinitrophenol, diazotized 3-amino-4-hydroxybenzensulfonic acid and resorcinol, sodium salts
CAS No.	91696-75-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Pigment Brown 44; Azo dye intermediate derived from diazotized 2-amino-4,6-dinitrophenol, 3-amino-4-hydroxybenzenesulfonic acid, and resorcinol; Sodium salt of a coupled diazo compound; Multi-component azo dye salt; Complex benzenesulfonic acid azo derivative; Technical grade dye intermediate
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict batch-to-batch consistency protocols. Quality is verified through comprehensive analytical methods including HPLC and spectrophotometry to ensure precise chromophore composition and purity. A detailed Certificate of Analysis (COA) specifying identity, strength, and impurity profiles is provided with every shipment to support your quality management systems.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed when not in use to prevent degradation and moisture absorption.

Specification

Item	Specification
Appearance	Colored Powder or Solid
Identification (IR)	Conforms to Structure
Assay (HPLC)	≥ 90% (Typical)
Moisture Content	≤ 5.0%
Solubility	Soluble in Water (Test)
Heavy Metals	< 20 ppm

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