Description

3-[[4-[(4-Amino-3-Sodiosulfophenyl)Azo]-2-Ethoxy-1-Naphthalenyl]Azo]-4-Hydroxy-7-[[3-[(2,4-Dihydroxyphenyl)Azo]Benzoyl]Amino]Naphthalene-2-Sulfonic Acid Sodium Salt is a high-purity, complex azo dye intermediate essential for producing vibrant and stable colorants. Its sophisticated molecular structure provides excellent chromophoric properties, making it a critical component for achieving specific, high-performance hues. This compound is primarily sought by manufacturers in the textile, ink, and specialty coatings industries who require precise and reliable colorant synthesis.

Application

• Textile Dyeing: A key intermediate for synthesizing high-grade, wash-fast azo dyes for natural and synthetic fibers.
• Ink Formulation: Used in the production of pigments for industrial printing inks, including packaging and security inks.
• Specialty Coatings: Serves as a colorant precursor in coatings for plastics, leather, and paper products.
• Research & Development: Employed in chemical research for developing novel chromophores and studying dye chemistry.
• Functional Dyes: Potential use in the synthesis of dyes for non-textile applications, such as in optical data storage or liquid crystal displays (LCDs).

Basic Information

Product Name	3-[[4-[(4-Amino-3-Sodiosulfophenyl)Azo]-2-Ethoxy-1-Naphthalenyl]Azo]-4-Hydroxy-7-[[3-[(2,4-Dihydroxyphenyl)Azo]Benzoyl]Amino]Naphthalene-2-Sulfonic Acid Sodium Salt
CAS No.	6451-08-7
Molecular Formula	C41H28N8Na2O11S2
Molecular Weight	918.81 g/mol
Synonyms	Acid Black 210; C.I. 300310; Sodium 3-[[4-[(4-amino-3-sulfonatophenyl)azo]-2-ethoxy-1-naphthyl]azo]-4-hydroxy-7-[[3-[(2,4-dihydroxyphenyl)azo]benzoyl]amino]naphthalene-2-sulfonate; 3-[[4-[(4-Amino-3-sulfophenyl)azo]-2-ethoxy-1-naphthyl]azo]-4-hydroxy-7-[[3-[(2,4-dihydroxyphenyl)azo]benzoyl]amino]naphthalene-2-sulfonic acid disodium salt; C.I. Acid Black 210; Lanasyn Black S-BL; Telon Black BGL
EINECS	229-247-9

Quality Control

Our production of 3-[[4-[(4-Amino-3-Sodiosulfophenyl)Azo]-2-Ethoxy-1-Naphthalenyl]Azo]-4-Hydroxy-7-[[3-[(2,4-Dihydroxyphenyl)Azo]Benzoyl]Amino]Naphthalene-2-Sulfonic Acid Sodium Salt adheres to stringent quality protocols to ensure batch-to-batch consistency and purity for industrial applications. The material is manufactured in compliance with ISO 9001 quality management standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee it meets your specific technical requirements.

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. The container should be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue 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 colloidal solution

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