Description

5-[(4-Acetamido-2-Sulphonatophenyl)Azo]-6-Amino-4-Hydroxynaphthalene-2-Sulphonic Acid is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its primary value lies in its role as a key precursor for synthesizing reactive and direct dyes, particularly those in the red and violet color spectra. This compound is essential for manufacturers in the textile, leather, and specialty ink industries who require consistent, high-quality intermediates to produce vibrant and colorfast dyes.

Application

• Primary Intermediate for Reactive Dyes: A crucial building block in the synthesis of high-quality reactive dyes used for coloring cotton, viscose, and other cellulosic fibers.
• Direct Dye Production: Used in the manufacture of direct dyes for applications on paper, leather, and textiles where high substantivity is required.
• Specialty Ink Formulation: Serves as a colorant intermediate in the production of inks for jet printing and other specialized marking applications.
• Research & Development: Employed in chemical R&D laboratories for developing novel chromophores and studying azo dye chemistry and properties.
• Fine Chemical Synthesis: Acts as a versatile intermediate for further chemical modifications to create dyes with specific functional properties for niche industrial applications.

Basic Information

Product Name	5-[(4-Acetamido-2-Sulphonatophenyl)Azo]-6-Amino-4-Hydroxynaphthalene-2-Sulphonic Acid
CAS No.	25317-34-4
Molecular Formula	C18H15N4O8S2
Molecular Weight	479.46 g/mol
Synonyms	5-[(4-Acetamido-2-sulfophenyl)azo]-6-amino-4-hydroxy-2-naphthalenesulfonic acid; C.I. Reactive Red 180 Intermediate; Reactive Red 180 Acid; 6-Amino-4-hydroxy-5-[(4-acetamido-2-sulfophenyl)azo]-2-naphthalenesulfonic acid; 2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-5-[(4-acetamido-2-sulfophenyl)azo]-; Azo dye intermediate 25317-34-4; 4-Acetamido-2-sulphonatophenyl azo amino hydroxynaphthalene sulphonic acid
EINECS	Contact for details

Quality Control

Our production of 5-[(4-Acetamido-2-Sulphonatophenyl)Azo]-6-Amino-4-Hydroxynaphthalene-2-Sulphonic Acid adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye intermediate applications. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (Typical 97-99%)
Water Content (KF)	≤ 5.0%
pH (1% Solution)	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water; Sparingly soluble in organic solvents

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