Description

5-(Acetylamino)-4-Hydroxy-3-[[2-Methoxy-5-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is engineered to deliver consistent color strength and excellent fastness properties in demanding applications. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries for the synthesis of high-performance dyes and pigments.

Application

• Primary intermediate for the synthesis of reactive and direct dyes for textile coloring, particularly for cotton and cellulose fibers.
• Key precursor in the production of high-grade inks for digital and industrial printing applications.
• Used in the manufacturing of specialized pigments for coatings and plastics.
• Employed in research and development for novel colorants with specific optical or functional properties.
• Potential use as a staining agent or colorimetric indicator in analytical chemistry and laboratory settings.

Basic Information

Product Name	5-(Acetylamino)-4-Hydroxy-3-[[2-Methoxy-5-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid
CAS No.	10116-15-1
Molecular Formula	C21H19N3O14S3
Molecular Weight	641.58 g/mol
Synonyms	Acid Red 337; C.I. 17200; Reactive Red 180; 5-Acetamido-4-hydroxy-3-((2-methoxy-5-((2-sulfooxyethyl)sulfonyl)phenyl)azo)naphthalene-2,7-disulfonic acid; 2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-4-hydroxy-3-((2-methoxy-5-((2-sulfooxyethyl)sulfonyl)phenyl)azo)-; 10116-15-1; Azo dye intermediate AR337
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 purity. Each lot is analyzed using advanced techniques like HPLC and spectrophotometry to verify critical parameters such as assay, impurity profile, and color value. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every 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). Keep away from strong oxidizing agents and incompatible materials. Due to its sulphonic acid groups, the material is hygroscopic; ensure the container is sealed after use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Sulfated Ash	≤ 1.0%
Solubility (Water)	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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