Description

7-Acetamido-4-Hydroxy-3-[[4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonic Acid is a high-purity, water-soluble azo dye intermediate characterized by its complex, multi-functional molecular structure. This compound matters for its role as a key precursor in the synthesis of specialized reactive and acid dyes, offering excellent color fastness and binding properties. Industrial manufacturers in the textile, leather, and specialty ink sectors require this intermediate to produce vibrant and durable colorants. Its specific sulfonic acid and sulphooxyethylsulphonyl groups make it particularly valuable for creating dyes with enhanced solubility and fiber reactivity.

Application

This versatile chemical intermediate serves critical functions across several high-value manufacturing processes:

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-performance reactive dyes for cotton, wool, and nylon textiles.
• Specialty Acid Dye Production: Used in manufacturing acid dyes for coloring silk, leather, and paper with excellent wash-fastness.
• Functional Dye Synthesis: Serves as a precursor for dyes used in ink-jet printing inks and other functional colorant applications.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying azo dye chemistry and properties.
• Fine Chemical Manufacturing: Utilized as a specialized intermediate in the production of other complex sulfonated organic compounds.

Basic Information

Product Name	7-Acetamido-4-Hydroxy-3-[[4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonic Acid
CAS No.	68189-39-9
Molecular Formula	C20H19N3O10S2
Molecular Weight	525.51 g/mol
Synonyms	7-Acetamido-4-hydroxy-3-[(4-((2-sulfooxyethyl)sulfonyl)phenyl)azo]-2-naphthalenesulfonic acid; C.I. Reactive Red 180 intermediate; Azo dye intermediate 68189-39-9; 2-Naphthalenesulfonic acid, 7-acetamido-4-hydroxy-3-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-; Reactive Red 180 precursor; Acid Dye Intermediate; Sulphonated azo dye intermediate; 4-Hydroxy-7-acetamido-3-(4-(2-sulphatoethylsulphonyl)phenylazo)naphthalene-2-sulphonic acid
EINECS	Contact for details

Quality Control

Our production of 7-Acetamido-4-Hydroxy-3-[[4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonic Acid adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing batch-specific results are provided and available upon request, guaranteeing traceability and reliability for your manufacturing processes.

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 tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Purity (HPLC Area %)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water, alkaline solutions

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