Description

5-[[2-Amino-5-Methyl-4-[[4-[2-(4-Nitro-2-Sulphophenyl)Vinyl]-3-Sulphophenyl]Azoxy]Phenyl]Azo]Naphthalene-1-Sulphonic Acid is a high-purity, complex azo dye intermediate characterized by its sulfonic acid groups and azoxy functionalization. This compound matters for its role as a critical precursor in synthesizing specialized dyes and pigments, offering precise color properties and structural stability. It is primarily needed by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-value, water-soluble azo dyes for textiles and leather.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics requiring specific hue and fastness properties.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Functional Material Synthesis: Potential use in creating advanced materials where the azoxy and sulfonic acid groups impart specific electronic or ionic properties.

Basic Information

Item	Detail
Product Name	5-[[2-Amino-5-Methyl-4-[[4-[2-(4-Nitro-2-Sulphophenyl)Vinyl]-3-Sulphophenyl]Azoxy]Phenyl]Azo]Naphthalene-1-Sulphonic Acid
CAS No.	85711-24-6
Molecular Formula	C31H23N5O10S3
Molecular Weight	729.73 g/mol
Synonyms	Acid Red 337 (C.I. 17200); 5-[(2-Amino-5-methyl-4-{[4-(2-(4-nitro-2-sulfophenyl)ethenyl)-3-sulfophenyl]diazenyl}phenyl)diazenyl]naphthalene-1-sulfonic acid; C.I. 17200; Azo dye intermediate 85711-24-6; 1-Naphthalenesulfonic acid, 5-[(2-amino-5-methyl-4-[[4-[2-(4-nitro-2-sulfophenyl)ethenyl]-3-sulfophenyl]diazenyl]phenyl)diazenyl]-; Reactive dye precursor; Sulfonated azo-azoxy compound
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques like HPLC and spectrophotometry to verify critical parameters. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles 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 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 stability and performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 5.0%

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