Description

4-[[4-[(4-Amino-2-Chloro-5-Methoxyphenyl)Azo]-6-Sodiosulfo-1-Naphthalenyl]Azo]-1'-Hydroxy[1,2'-Azobisnaphthalene]-3',6-Disulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex, polyfunctional structure makes it a critical precursor for synthesizing specialized dyes and pigments with enhanced color fastness and specific application properties. This compound is primarily sought by manufacturers in the textile, ink, and specialty coatings industries for producing high-performance colorants.

Application

• Textile Dyeing: A key intermediate for manufacturing reactive and direct dyes for cotton, wool, and nylon, offering excellent wash and light fastness.
• Ink Formulation: Used in the synthesis of pigments for high-quality printing inks, including those for packaging and security applications.
• Specialty Coatings: Serves as a precursor for colorants in industrial and automotive coatings requiring specific chromaticity and durability.
• Paper Coloring: Employed in the production of dyes for high-grade paper and decorative laminates.
• Biological Staining: Potential use as an intermediate for histochemical stains and indicators in laboratory settings.
• Research & Development: A valuable building block in organic synthesis for developing novel chromophores and functional materials.

Basic Information

Product Name	4-[[4-[(4-Amino-2-Chloro-5-Methoxyphenyl)Azo]-6-Sodiosulfo-1-Naphthalenyl]Azo]-1'-Hydroxy[1,2'-Azobisnaphthalene]-3',6-Disulfonic Acid Disodium Salt
CAS No.	6411-51-4
Molecular Formula	C33H22ClN6Na2O12S3
Molecular Weight	879.24 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 4-[[4-[(4-amino-2-chloro-5-methoxyphenyl)azo]-6-sulphonato-1-naphthyl]azo]-1'-hydroxy-3',6-disulphonato-[1,2'-azobisnaphthalene]; 1,2'-Azobisnaphthalene]-3',6-disulfonic acid, 4-[[4-[(4-amino-2-chloro-5-methoxyphenyl)azo]-6-sulfo-1-naphthalenyl]azo]-1'-hydroxy-, disodium salt; C.I. Acid Black 210; Black 210 (Acid)
EINECS	Contact for details

Quality Control

Our production of 4-[[4-[(4-Amino-2-Chloro-5-Methoxyphenyl)Azo]-6-Sodiosulfo-1-Naphthalenyl]Azo]-1'-Hydroxy[1,2'-Azobisnaphthalene]-3',6-Disulfonic Acid Disodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing batch-specific results are available upon request 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). Keep away from incompatible materials and sources of ignition. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	Contact for details
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.