Description

Sodium 3-[[4-[(2-Ethoxy-5-Methylphenyl)Azo]-1-Naphthyl]Azo]Benzenesulphonate is a high-purity azo dye intermediate essential for producing vibrant and stable colorants. Its value lies in its precise molecular structure, which enables the synthesis of specialized dyes with excellent lightfastness and color strength for demanding applications. This product is a critical raw material for manufacturers in the textile, ink, and specialty coatings industries who require consistent quality and reliable supply chains for their colorant production.

Application

• Primary intermediate for the synthesis of high-performance azo dyes and pigments.
• Key component in manufacturing colorants for textile dyeing and printing, particularly for synthetic fibers.
• Used in the production of inks for packaging, publications, and specialty printing applications.
• Essential for formulating colorants in industrial coatings and paints.
• Potential use in the coloration of plastics and polymers.
• Research and development of novel functional dyes for non-traditional applications.

Basic Information

Product Name	Sodium 3-[[4-[(2-Ethoxy-5-Methylphenyl)Azo]-1-Naphthyl]Azo]Benzenesulphonate
CAS No.	68959-00-2
Molecular Formula	C31H25N4NaO4S
Molecular Weight	572.61 g/mol
Synonyms	Benzenesulfonic acid, 3-[[4-[(2-ethoxy-5-methylphenyl)azo]-1-naphthalenyl]azo]-, sodium salt; C.I. Solvent Yellow 85; Sodium 3-[(4-[(2-ethoxy-5-methylphenyl)azo]-1-naphthyl)azo]benzenesulfonate; 3-[[4-[(2-Ethoxy-5-methylphenyl)azo]-1-naphthyl]azo]benzenesulfonic acid sodium salt; Azo dye intermediate 68959-00-2; 2-Ethoxy-5-methyl-4'-[(3-sulfophenyl)azo]azobenzene sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 3-[[4-[(2-Ethoxy-5-Methylphenyl)Azo]-1-Naphthyl]Azo]Benzenesulphonate is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Every lot is analyzed against stringent in-house specifications using advanced analytical techniques like HPLC and spectroscopy. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are provided with each shipment to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to red-brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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