Description

5-Amino-3-[[4'-[[2,4-Diamino-5-[[3-[(2,4-Diaminophenyl)Azo]Phenyl]Azo]Phenyl]Azo][1,1'-Biphenyl]-4-Yl]Azo]-4-Hydroxynaphthalene-2,7-Disulfonic Acid Disodium Salt is a high-purity, complex azo dye intermediate with exceptional chromophoric properties. This compound is valued for its ability to impart deep, vibrant colors with excellent light and wash fastness in synthetic materials. It is a critical raw material for manufacturers in the textile dyeing, leather finishing, and specialty ink industries seeking consistent, high-performance colorants.

Application

• Textile Dyeing: Primary application for dyeing synthetic fibers like polyamide (nylon) and protein-based fibers, providing strong, durable shades.
• Leather Finishing: Used in the coloration of leather goods, offering rich color penetration and resistance to fading.
• Specialty Inks: A key component in the formulation of high-performance inks for jet printing and other industrial marking applications.
• Paper Coloring: Employed for producing colored papers requiring specific, stable hues.
• Research & Development: Serves as a sophisticated intermediate for synthesizing novel azo dyes and pigments in chemical research.
• Biological Staining: Potential use as a staining agent in histology and microscopy due to its multiple azo and amino groups.

Basic Information

Product Name	5-Amino-3-[[4'-[[2,4-Diamino-5-[[3-[(2,4-Diaminophenyl)Azo]Phenyl]Azo]Phenyl]Azo][1,1'-Biphenyl]-4-Yl]Azo]-4-Hydroxynaphthalene-2,7-Disulfonic Acid Disodium Salt
CAS No.	6473-10-5
Molecular Formula	C46H34N14Na2O10S2
Molecular Weight	1061.0 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 5-amino-3-[[4'-[[2,4-diamino-5-[(3-[(2,4-diaminophenyl)azo]phenyl)azo]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate; 5-Amino-4-hydroxy-3-([1,1'-biphenyl]-4-ylazo)-6-([4-([2,4-diamino-5-([3-([2,4-diaminophenyl)azo]phenyl)azo]phenyl)azo][1,1'-biphenyl]-4-yl)azo)naphthalene-2,7-disulfonic acid disodium salt
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high purity. Quality is verified through advanced analytical techniques including HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment 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). This material is light-sensitive and hygroscopic; prolonged exposure to light or moisture should be avoided to maintain stability and performance.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF Titration)	≤ 5.0%
Ash Content	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Partially soluble, forms colloidal solution

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