Description

1-[[4-(2-Methylphenoxy)-3-Sulphophenyl]Azo]-4-[[4-[[(4-Methylphenyl)Sulphonyl]Oxy]Phenyl]Azo]Naphthalenesulphonic Acid is a high-purity, complex azo dye intermediate essential for producing vivid and stable colorants. Its value lies in its specific molecular structure, which provides excellent chromophore properties and compatibility with various substrates for demanding technical applications. This compound is primarily needed by manufacturers in the dye and pigment industry, as well as by research institutions developing advanced functional materials.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments.
• Key component in the production of colorants for inks, including industrial and specialty printing applications.
• Used in the manufacturing of colorants for textiles and fabrics.
• Potential use in the formulation of functional dyes for optical data storage or other advanced technologies.
• Research and development of novel colored polymers and coatings.
• As a standard or reference material in analytical chemistry for dye identification and quantification.

Basic Information

Product Name	1-[[4-(2-Methylphenoxy)-3-Sulphophenyl]Azo]-4-[[4-[[(4-Methylphenyl)Sulphonyl]Oxy]Phenyl]Azo]Naphthalenesulphonic Acid
CAS No.	82323-96-4
Molecular Formula	C37H28N4O9S2
Molecular Weight	728.77 g/mol
Synonyms	Acid Red 423; C.I. 27295; 1-[[4-(2-Methylphenoxy)-3-sulfophenyl]azo]-4-[[4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo]-2-naphthalenesulfonic acid; 2-Naphthalenesulfonic acid, 1-[[4-(2-methylphenoxy)-3-sulfophenyl]azo]-4-[[4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo]-; Azo dye intermediate 82323-96-4; 1-[[4-(o-Cresyloxy)-3-sulfophenyl]azo]-4-[[4-(p-toluenesulfonyloxy)phenyl]azo]-2-naphthalenesulfonic acid
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation. A 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 a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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