Description

7-Anilino-3-[[4-[(4-Chloro-2-Sulphophenyl)Azo]-2-Methoxy-6-Sulphonaphthyl]Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid is a high-purity, complex azo dye intermediate essential for synthesizing vibrant and colorfast dyes and pigments. Its molecular structure is engineered to provide excellent chromophore properties, making it a critical component for achieving specific shades and performance characteristics in demanding applications. This compound is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries seeking reliable and consistent raw materials for their production processes.

Application

• Textile Dye Synthesis: A key intermediate for producing high-performance acid dyes and reactive dyes used on nylon, wool, silk, and other protein fibers.
• Ink Manufacturing: Used in the formulation of specialized inks, including those for packaging, security printing, and digital textile printing, where color strength and stability are paramount.
• Pigment Production: Serves as a precursor in the manufacture of high-grade organic pigments for plastics, coatings, and masterbatches.
• Leather Dyeing: Employed in the synthesis of dyes for the leather industry, providing rich, durable colors with good penetration.
• Paper Coloring: Used in the production of dyes for specialty paper products requiring specific color properties.
• Research & Development: Serves as a valuable chemical entity for R&D laboratories exploring new chromophores, dye structures, and colorant applications.

Basic Information

Item	Details
Product Name	7-Anilino-3-[[4-[(4-Chloro-2-Sulphophenyl)Azo]-2-Methoxy-6-Sulphonaphthyl]Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid
CAS No.	93964-19-3
Molecular Formula	C33H22ClN5O10S3
Molecular Weight	788.21 g/mol
Synonyms	Acid Black 210; C.I. 300310; 7-Anilino-4-hydroxy-3-[[4-[(4-chloro-2-sulfophenyl)azo]-2-methoxy-6-sulfonaphthyl]azo]naphthalene-2-sulfonic acid; C.I. Acid Black 210; Acid Black 210 (C.I. 300310); Dye Intermediate for Acid Black 210; Azo Dye Intermediate CAS 93964-19-3
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, UV-Vis spectroscopy, and titration methods. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

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 product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture, which may affect product performance.

Specification

Item	Specification
Appearance	Dark powder or crystalline solid
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.