Description

Disodium 3,3'-[Carbonylbis[Imino(3-Methoxy-4,1-Phenylene)Azo]]Bis[Benzenesulphonate] is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its primary value lies in its role as a key precursor for synthesizing reactive and direct dyes, offering excellent color strength and stability. This compound is essential for manufacturers in the textile, leather, and specialty chemical industries seeking to produce vibrant and durable colorants.

Application

• Primary Intermediate for Reactive Dyes: A crucial building block in the synthesis of high-performance reactive dyes for cotton and other cellulosic fibers.
• Direct Dye Production: Used in the manufacture of direct dyes for applications on paper, leather, and textiles where high substantivity is required.
• Specialty Pigments and Inks: Serves as a precursor for creating specialized pigments used in inks and coatings.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying azo dye chemistry.
• Biological Staining Agents: Potential use in the synthesis of dyes for histological staining in life sciences.

Basic Information

Product Name	Disodium 3,3'-[Carbonylbis[Imino(3-Methoxy-4,1-Phenylene)Azo]]Bis[Benzenesulphonate]
CAS No.	10114-86-0
Molecular Formula	C29H22N6Na2O11S2
Molecular Weight	732.62 g/mol
Synonyms	Disodium 3,3'-[carbonylbis[imino(3-methoxy-4,1-phenylene)azo]]bis(benzenesulphonate); C.I. Reactive Red 198 Intermediate; Benzenesulfonic acid, 3,3'-[carbonylbis[imino(3-methoxy-4,1-phenylene)azo]]bis-, disodium salt; Reactive Red 198 Diazo Component; Azo dye intermediate RR198; 3,3'-((Carbonylbis(azanediyl))bis(3-methoxy-4,1-phenylene))bis(diazene-2,1-diyl))bis(benzenesulfonic acid) disodium salt
EINECS	Contact for details

Quality Control

Our production of Disodium 3,3'-[Carbonylbis[Imino(3-Methoxy-4,1-Phenylene)Azo]]Bis[Benzenesulphonate] adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, color value, and performance as a dye intermediate. Certificates of Analysis (COA) detailing key specifications such as assay, impurity profile, and solubility are available upon request to support your quality assurance processes.

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 strong oxidizing agents. The material is light-sensitive (store away from light) and hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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