Description

Disodium 3-[[4-[[4-[(2,4-Diamino-5-Nitrophenyl)Azo]-m-Tolyl]Azo]-o-Tolyl]Azo]Naphthalene-1,5-Disulphonate is a high-purity, synthetic azo dye intermediate known for its complex molecular structure and specific chromophoric properties. This compound is critical for producing vivid and stable colorants, particularly in applications requiring precise shade control and chemical resistance. It is primarily utilized by manufacturers in the textile dyeing, specialty ink formulation, and advanced materials research sectors who require consistent quality and reliable supply chains for their production processes.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of complex, high-performance azo dyes for textiles and fibers.
• Specialty Ink Manufacturing: Used in the formulation of inks for jet printing, security printing, and other applications demanding specific color fastness and stability.
• Research & Development: Employed in chemical research for developing new chromophores and studying azo coupling reactions and photochemical properties.
• Pigment Production: Acts as a precursor in the manufacture of organic pigments used in plastics, coatings, and artistic materials.
• Analytical Chemistry: Can be utilized as a staining agent or a colorimetric indicator in specific laboratory analytical procedures.
• Functional Material Synthesis: Investigated for potential use in creating advanced materials like dye-sensitized solar cells or optical sensors due to its light-absorbing characteristics.

Basic Information

Product Name	Disodium 3-[[4-[[4-[(2,4-Diamino-5-Nitrophenyl)Azo]-m-Tolyl]Azo]-o-Tolyl]Azo]Naphthalene-1,5-Disulphonate
CAS No.	6739-48-6
Molecular Formula	C35H24N10Na2O10S2
Molecular Weight	858.73 g/mol
Synonyms	Acid Black 210; C.I. 28440; Disodium 3-[[4-[[4-[(2,4-diamino-5-nitrophenyl)azo]-3-methylphenyl]azo]-2-methylphenyl]azo]naphthalene-1,5-disulfonate; 1,5-Naphthalenedisulfonic acid, 3-[[4-[[4-[(2,4-diamino-5-nitrophenyl)azo]-3-methylphenyl]azo]-2-methylphenyl]azo]-, disodium salt; Benzenesulfonic acid, 2-[[4-[(2,4-diamino-5-nitrophenyl)azo]-3-methylphenyl]azo]-5-methyl-, coupled with diazotized 4-nitro-1,3-benzenediamine; Azo Black 210
EINECS	Contact for details

Quality Control

Our Disodium 3-[[4-[[4-[(2,4-Diamino-5-Nitrophenyl)Azo]-m-Tolyl]Azo]-o-Tolyl]Azo]Naphthalene-1,5-Disulphonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye intermediate applications. Certificates of Analysis (COA) documenting batch-specific results are provided to guarantee traceability and compliance with your quality requirements.

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 heat sources and 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 or solid
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)	Partially soluble, forms colored solution

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