Description

1,3-Benzenedisulfonic Acid, 4-Amino-, Diazotized, Coupled With Diazotized 2-[(4-Aminophenyl)Amino]-5-Nitrobenzenesulfonic Acid And m-Phenylenediamine is a complex, high-purity diazo coupling product primarily used as a key intermediate in the synthesis of specialized dyes and pigments. Its precise molecular structure is critical for imparting specific color properties and fastness characteristics in demanding applications. This product is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to produce high-performance colorants with consistent quality and batch-to-batch reliability.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a crucial building block in the synthesis of high-value, complex azo colorants.
• Textile Dyeing: Used in the production of dyes for synthetic fibers like nylon and polyester, offering good wash and light fastness.
• Ink Formulation: A key component in manufacturing pigments for specialty printing inks, including inks for packaging and security applications.
• Functional Dyes: Potential use in the synthesis of dyes for non-textile applications, such as in lasers, optical data storage, or as biological stains.
• Research & Development: Employed in chemical R&D for developing novel chromophores with specific absorption and emission properties.
• Specialty Chemical Synthesis: Acts as an intermediate for other functional chemicals where the diazo and sulfonic acid groups are utilized in further reactions.

Basic Information

Product Name	1,3-Benzenedisulfonic Acid, 4-Amino-, Diazotized, Coupled With Diazotized 2-[(4-Aminophenyl)Amino]-5-Nitrobenzenesulfonic Acid And m-Phenylenediamine
CAS No.	90194-10-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Diazotized 4-Amino-1,3-benzenedisulfonic acid coupled with diazotized 2-[(4-aminophenyl)amino]-5-nitrobenzenesulfonic acid and m-phenylenediamine; C.I. Azoic Coupling Component; Azo dye intermediate 90194-10-8; Diazonium salt coupling product; Complex azo coupling component; 4-Amino-m-benzenedisulfonic acid, diazotized, coupled reaction product
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality control protocols to ensure chemical integrity and performance consistency. Every batch is analyzed using advanced techniques like HPLC to confirm identity, purity, and the absence of critical by-products. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Brown to dark brown powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 2.0%
Solubility	Soluble in water, alkaline solutions

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