Description

Disodium 2-[[2,4-Dihydroxy-3-[(4-Nitrophenyl)Azo]-5-[(4-Sulphonatophenyl)Azo]Phenyl]Azo]-5-Nitrobenzenesulphonate is a high-purity, synthetic azo dye intermediate known for its vibrant color properties and chemical stability. This compound is critical for manufacturers requiring precise and consistent chromophores for advanced coloration applications. It is primarily utilized by the textile, ink, and specialty polymer industries for producing high-performance dyes and pigments.

Application

• Primary intermediate for the synthesis of high-grade, wash-fast azo dyes for textiles and fabrics.
• Key chromophore component in the manufacturing of industrial inks, including those for packaging and printing.
• Used in the production of colorants for specialty plastics and polymers.
• Potential application in the formulation of biological stains and indicators for laboratory use.
• Research and development of novel functional dyes for optical and electronic applications.

Basic Information

Item	Details
Product Name	Disodium 2-[[2,4-Dihydroxy-3-[(4-Nitrophenyl)Azo]-5-[(4-Sulphonatophenyl)Azo]Phenyl]Azo]-5-Nitrobenzenesulphonate
CAS No.	85631-85-2
Molecular Formula	C30H18N8Na2O13S2
Molecular Weight	824.62 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 5-[(4-sulfophenyl)azo]-2,4-dihydroxy-3-[(4-nitrophenyl)azo]-5'-nitro[1,1'-biphenyl]-2'-sulfonate; 2-Naphthalenesulfonic acid, 6-[(2,4-dihydroxy-5-[(4-nitrophenyl)azo]phenyl)azo]-5-hydroxy-, disodium salt; Azo Black 210; C.I. Acid Black 210; [1,1'-Biphenyl]-2'-sulfonic acid, 5-[(4-sulfophenyl)azo]-2,4-dihydroxy-3-[(4-nitrophenyl)azo]-5'-nitro-, disodium salt
EINECS	Contact for details

Quality Control

Our Disodium 2-[[2,4-Dihydroxy-3-[(4-Nitrophenyl)Azo]-5-[(4-Sulphonatophenyl)Azo]Phenyl]Azo]-5-Nitrobenzenesulphonate is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency meet the high standards required for industrial dye synthesis. 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, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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