Description

4-Hydroxy-3-[[4-[(5-Hydroxy-7-Sodiosulfo-2-Naphthalenyl)Azo]-5-Methyl-2-Methoxyphenyl]Azo]-7-(Phenylamino)Naphthalene-2-Sulfonic Acid Sodium Salt is a high-purity, complex azo dye intermediate. This compound is valued for its precise chemical structure, which is critical for imparting specific color properties and stability in advanced dye formulations. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for synthesizing high-performance dyes and pigments.

Application

• Primary Intermediate for Azo Dyes: A key building block for synthesizing high-grade, complex azo dyes used in textile coloration.
• Specialty Ink Production: Used in the formulation of specialized inks for packaging, security printing, and digital applications requiring specific color fastness.
• Pigment Manufacturing: Serves as a precursor in the production of organic pigments for plastics, coatings, and paints.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying dye-sensitized systems.
• Industrial Colorants: Applied in the manufacture of colorants for paper, leather, and other industrial materials.

Basic Information

Product Name	4-Hydroxy-3-[[4-[(5-Hydroxy-7-Sodiosulfo-2-Naphthalenyl)Azo]-5-Methyl-2-Methoxyphenyl]Azo]-7-(Phenylamino)Naphthalene-2-Sulfonic Acid Sodium Salt
CAS No.	6227-21-0
Molecular Formula	C34H24N6Na2O10S2
Molecular Weight	786.70 g/mol
Synonyms	Acid Black 210; C.I. 300310; Sodium 4-hydroxy-3-({4-[(5-hydroxy-7-sodiosulfo-2-naphthyl)azo]-5-methyl-2-methoxyphenyl}azo)-7-(phenylamino)naphthalene-2-sulfonate; 7-(Phenylamino)-4-hydroxy-3-[[4-[(5-hydroxy-7-sodiosulfo-2-naphthalenyl)azo]-5-methyl-2-methoxyphenyl]azo]naphthalene-2-sulfonic acid sodium salt; Azo Dye Intermediate 6227-21-0; Black 210; C.I. Acid Black 210
EINECS	Contact for details

Quality Control

Our production of this 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 Certificate of Analysis (COA) detailing purity, identity, and impurity profiles 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 after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Ash Content	≤ 1.0%
Water Solubility	Freely soluble

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