Description

5-(Acetylamino)-4-Hydroxy-3-[[4-[[2-(Sulfooxy)Ethyl]Sulfonyl]Phenyl]Azo]-2,7-Naphthalenedisulfonic Acid is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex molecular structure, featuring multiple sulfonic acid groups and a reactive azo linkage, makes it a critical precursor for synthesizing specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical sectors seeking to produce vivid, colorfast, and high-performance colorants.

Application

• Primary Intermediate for Reactive Dyes: Key building block for synthesizing high-quality reactive dyes used in cotton and cellulose fiber dyeing.
• Specialty Pigment Manufacturing: Used in the production of high-performance pigments for inks, coatings, and plastics requiring excellent lightfastness and stability.
• Textile Colorant Synthesis: Serves as a crucial component in creating specific shades of reds, blues, and blacks in textile processing.
• Laboratory & Research Chemical: Employed in R&D for developing novel chromophores and studying azo dye chemistry and applications.
• Functional Dye Production: Potential use in the synthesis of dyes for non-textile applications, such as sensitizers or indicators.

Basic Information

Product Name	5-(Acetylamino)-4-Hydroxy-3-[[4-[[2-(Sulfooxy)Ethyl]Sulfonyl]Phenyl]Azo]-2,7-Naphthalenedisulfonic Acid
CAS No.	68134-16-7
Molecular Formula	C20H18N4O14S4
Molecular Weight	698.63 g/mol
Synonyms	Acid Red 337 (C.I. 17200); 2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-4-hydroxy-3-((4-((2-sulfooxy)ethyl)sulfonyl)phenyl)azo)-; Reactive Red Dye Intermediate; 5-Acetamido-4-hydroxy-3-(4-(2-sulfooxyethylsulfonyl)phenyl)azo)naphthalene-2,7-disulfonic acid; C.I. Acid Red 337; Azo dye intermediate 68134-16-7
EINECS	Contact for details

Quality Control

Our production of 5-(Acetylamino)-4-Hydroxy-3-[[4-[[2-(Sulfooxy)Ethyl]Sulfonyl]Phenyl]Azo]-2,7-Naphthalenedisulfonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity for industrial synthesis. Every lot is analyzed against rigorous in-house specifications, with key parameters including HPLC assay, color strength, and impurity profile being critically monitored. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee compliance with your technical requirements.

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 when not in use to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Water Content (KF)	Max. 5.0%
pH (1% Solution)	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm
Solubility	Soluble in water

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