Description

4-Amino-3-[[4'-[(8-Amino-1-Hydroxy-3,6-Disulpho-2-Naphthyl)Azo][1,1'-Biphenyl]-4-Yl]Azo]-5-Hydroxy-6-[(4-Sulphophenyl)Azo]Naphthalene-2,7-Disulphonic Acid is a high-purity, polyazo dye intermediate known for its complex molecular structure and multiple reactive sites. This compound is critically important for synthesizing high-performance dyes and pigments with exceptional color strength and fastness properties. It is primarily sought by manufacturers in the textile, ink, and specialty coatings industries who require consistent quality and reliable supply chains for their production processes.

Application

• Textile Dye Synthesis: A key intermediate for producing high-grade, wash-fast azo dyes for cotton, wool, and synthetic fibers.
• Industrial Pigment Manufacturing: Used in the creation of organic pigments for plastics, paints, and inks, offering excellent tinting strength and durability.
• Functional Dye Production: Serves as a precursor for dyes used in specialized applications, including laser dyes and optical data storage media.
• Research & Development: Employed in chemical research for developing novel chromophores and studying azo coupling reactions.
• Analytical Reagents: Can be utilized as a complexometric indicator or a staining agent in certain analytical and biological protocols.

Basic Information

Product Name	4-Amino-3-[[4'-[(8-Amino-1-Hydroxy-3,6-Disulpho-2-Naphthyl)Azo][1,1'-Biphenyl]-4-Yl]Azo]-5-Hydroxy-6-[(4-Sulphophenyl)Azo]Naphthalene-2,7-Disulphonic Acid
CAS No.	93920-42-4
Molecular Formula	C44H30N8O16S6
Molecular Weight	1143.08 g/mol
Synonyms	Acid Black 210; C.I. 300310; Polyazo dye intermediate; 4-Amino-3-{[4'-(8-amino-1-hydroxy-3,6-disulfo-2-naphthyl)azo][1,1'-biphenyl]-4-yl}azo-5-hydroxy-6-(4-sulfophenyl)azo-naphthalene-2,7-disulfonic acid; 1,3-Naphthalenedisulfonic acid, 8-amino-7-[[4'-[[8-amino-1-hydroxy-3,6-disulfo-2-naphthalenyl]azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(4-sulfophenyl)azo]-; Black 210 (Acid); Azo Black 210 Intermediate
EINECS	Contact for details

Quality Control

Our production of 4-Amino-3-[[4'-[(8-Amino-1-Hydroxy-3,6-Disulpho-2-Naphthyl)Azo][1,1'-Biphenyl]-4-Yl]Azo]-5-Hydroxy-6-[(4-Sulphophenyl)Azo]Naphthalene-2,7-Disulphonic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) detailing all critical 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 a controlled room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. Due to its complex structure, prolonged exposure to elevated temperatures or humidity 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% (Typical 97-99%)
Water Content (KF)	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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