Description

4-[(4-Amino-2-Chloro-5-Methoxyphenyl)Azo]-2-Ethoxy-2'-Hydroxy-[1,1'-Azobisnaphthalene]-6,6'-Disulfonic Acid Disodium Salt is a high-purity, water-soluble disazo dye intermediate with a complex naphthalene-based structure. This compound is valued for its ability to impart vivid and stable coloration, particularly in applications requiring high-performance chromophores. It is primarily utilized by manufacturers in the specialty dyes and pigments industry for producing advanced colorants.

Application

• Primary Intermediate for High-Performance Dyes: A key building block in the synthesis of specialized azo dyes for textiles, leather, and paper.
• Functional Dye Manufacturing: Used in the production of dyes for inkjet inks, requiring excellent water solubility and color strength.
• Research & Development: Serves as a critical reagent in chemical research for developing new chromophores and studying azo coupling reactions.
• Specialty Pigments: Potential use in the formulation of pigments for coatings and plastics where specific color properties are needed.
• Analytical Chemistry: May be employed as a staining agent or colorimetric indicator in laboratory settings.

Basic Information

Product Name	4-[(4-Amino-2-Chloro-5-Methoxyphenyl)Azo]-2-Ethoxy-2'-Hydroxy-[1,1'-Azobisnaphthalene]-6,6'-Disulfonic Acid Disodium Salt
CAS No.	6369-27-3
Molecular Formula	C31H24ClN5Na2O10S2
Molecular Weight	788.17 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 4-[(4-amino-2-chloro-5-methoxyphenyl)azo]-2-ethoxy-2'-hydroxy-1,1'-azonaphthalene-6,6'-disulfonate; 1,1'-Azobisnaphthalene]-6,6'-disulfonic acid, 4-[(4-amino-2-chloro-5-methoxyphenyl)azo]-2-ethoxy-2'-hydroxy-, disodium salt; 2-Ethoxy-2'-hydroxy-4-[(4-amino-2-chloro-5-methoxyphenyl)azo]-1,1'-azonaphthalene-6,6'-disulfonic acid disodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Every lot is tested against established specifications for identity, assay, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 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.