Description

Benzenesulfonic acid, 3-amino-4-hydroxy-5-nitro-, diazotized, coupled with diazotized 5-amino-2-(phenylamino)benzenesulfonic acid, diazotized 4-nitrobenzenamine and m-phenylenediamine is a complex, high-purity azo dye intermediate synthesized through multiple diazotization and coupling reactions. This compound is critical for producing specialized, high-performance dyes and pigments with excellent color fastness and stability. It is primarily required by manufacturers in the textile, leather, ink, and specialty coatings industries seeking to formulate advanced colorants for demanding applications.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a key building block in the synthesis of high-value, complex azo dyes used in textile dyeing and printing.
• Leather Coloring Agent: Used in the production of dyes for high-quality leather finishes, providing deep, durable colors.
• Ink Formulation: Essential for manufacturing specialized printing inks, including those for packaging and security applications, requiring specific color properties.
• Industrial Coatings & Paints: Incorporated into pigment systems for coatings that require enhanced weather resistance and color retention.
• Research & Development: Utilized in chemical R&D labs for developing novel chromophores and studying azo coupling chemistry.
• Specialty Chemical Synthesis: Acts as a precursor for other functional chemicals where the benzenesulfonic acid and azo groups are required.

Basic Information

Item	Detail
Product Name	Benzenesulfonic acid, 3-amino-4-hydroxy-5-nitro-, diazotized, coupled with diazotized 5-amino-2-(phenylamino)benzenesulfonic acid, diazotized 4-nitrobenzenamine and m-phenylenediamine
CAS No.	94552-17-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Azoic Coupling Component; Polyazo dye intermediate; Diazotized 3-amino-4-hydroxy-5-nitrobenzenesulfonic acid coupled complex; 4-Nitroaniline, diazotized, coupled with m-phenylenediamine and diazotized 3-amino-4-hydroxy-5-nitrobenzenesulfonic acid derivative; Azo dye intermediate CAS 94552-17-7; Complex benzenesulfonic acid azo compound; Multi-component azo coupling product.
EINECS	Contact for details

Quality Control

Our Benzenesulfonic acid, 3-amino-4-hydroxy-5-nitro-, diazotized, coupled with diazotized 5-amino-2-(phenylamino)benzenesulfonic acid, diazotized 4-nitrobenzenamine and m-phenylenediamine is produced under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure consistent purity, composition, and performance as a dye intermediate. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics to meet the stringent requirements of the dyes and pigments industry.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. Due to the complex azo structure, prolonged exposure to elevated temperatures or direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Colored Powder or Solid
Identification (IR)	Conforms to Reference Spectrum
Assay (HPLC)	Min. 95%
Moisture Content	Max. 2.0%
Ash Content	Max. 0.5%
Solubility (Test)	Soluble in Alkaline Aqueous Solution

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