Description

Benzenesulfonic Acid, 5-Amino-2-[(4-Aminophenyl)Amino]-, Diazotized, Coupled With 5,5'-[(5-Hydroxy-1,3-Phenylene)Bis(Oxy)]Bis[1,3-Benzenediol], Sodium Salt is a high-purity, complex synthetic dye intermediate essential for producing vibrant and stable colorants. This compound matters for its role as a key precursor in the synthesis of high-performance dyes, offering excellent coupling efficiency and color development. It is primarily needed by manufacturers in the textile, ink, and specialty chemical industries seeking to develop advanced coloring agents with specific fastness properties.

Application

• Primary Intermediate for Azo Dyes: Serves as a critical coupling component in the synthesis of complex azo dyes for textiles and leather.
• Specialty Ink Manufacturing: Used in the production of high-quality pigments for inks in packaging, security printing, and digital applications.
• Functional Dye Synthesis: A key building block for creating dyes with specific functional properties, such as light-fastness or thermal stability.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying dye chemistry.
• Industrial Colorant Production: Utilized in the manufacture of colorants for plastics, coatings, and other industrial materials.

Basic Information

Item	Detail
Product Name	Benzenesulfonic Acid, 5-Amino-2-[(4-Aminophenyl)Amino]-, Diazotized, Coupled With 5,5'-[(5-Hydroxy-1,3-Phenylene)Bis(Oxy)]Bis[1,3-Benzenediol], Sodium Salt
CAS No.	97675-30-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Developer 12; 5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid, diazotized, coupled with 5,5'-[(5-hydroxy-1,3-phenylene)bis(oxy)]bis[1,3-benzenediol], sodium salt; Azoic Coupling Component 12; Developer 12; Sodium 5-amino-2-[(4-aminophenyl)amino]benzenesulfonate diazo coupled bis-dihydroxybenzene derivative
EINECS	Contact for details

Quality Control

Our Benzenesulfonic Acid, 5-Amino-2-[(4-Aminophenyl)Amino]-, Diazotized, Coupled With 5,5'-[(5-Hydroxy-1,3-Phenylene)Bis(Oxy)]Bis[1,3-Benzenediol], Sodium Salt is produced under a rigorous quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory compliance 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). 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	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals	≤ 20 ppm
Residual Solvents	Meets ICH guidelines

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