Description

4-Amino-5-Hydroxy-3-[(4-Nitrophenyl)Azo]-6-[[4-(Phenylazo)Phenyl]Azo]Naphthalene-2,7-Disulfonic Acid Disodium Salt is a high-purity, complex azo dye intermediate of significant industrial importance. Its value lies in its ability to impart specific, vibrant color properties and act as a key building block in the synthesis of advanced dyes and pigments. This product is essential for manufacturers in the textile, ink, and specialty chemical industries seeking consistent quality and performance in their colorant formulations.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a critical precursor in the synthesis of high-performance, complex azo dyes for textiles, leather, and paper.
• Specialty Ink Formulations: Used in the production of colorants for inks in packaging, security printing, and digital applications.
• Functional Dye Synthesis: Acts as a key component in creating dyes for non-textile applications, such as in liquid crystal displays (LCDs) or laser dyes.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-color relationships.
• Analytical Chemistry: Can be utilized as a reagent or standard in analytical methods due to its distinct chromophoric properties.

Basic Information

Product Name	4-Amino-5-Hydroxy-3-[(4-Nitrophenyl)Azo]-6-[[4-(Phenylazo)Phenyl]Azo]Naphthalene-2,7-Disulfonic Acid Disodium Salt
CAS No.	6487-06-5
Molecular Formula	C34H22N8Na2O11S2
Molecular Weight	844.75 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 4-amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[[4-(phenylazo)phenyl]azo]naphthalene-2,7-disulphonate; 4-Amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[[4-(phenylazo)phenyl]azo]-2,7-naphthalenedisulfonic acid disodium salt; 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[[4-(phenylazo)phenyl]azo]-, disodium salt; C.I. Acid Black 210; Azo Black 210
EINECS	Contact for details

Quality Control

Our production of 4-Amino-5-Hydroxy-3-[(4-Nitrophenyl)Azo]-6-[[4-(Phenylazo)Phenyl]Azo]Naphthalene-2,7-Disulfonic Acid Disodium Salt adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent chromatic strength, and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing identity, assay, impurity profile, and physical parameters is provided with each shipment.

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 hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed after opening to prevent degradation and moisture absorption.

Specification

Item	Specification
Appearance	Dark powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility (Water)	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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