Description

Sodium 4-[[4-[(2-Hydroxy-1-Naphthyl)Azo]-3-Methylphenyl]Azo]Benzenesulphonate is a high-purity azo dye intermediate essential for producing vivid and stable colorants. Its value lies in its precise molecular structure, which enables the synthesis of specialized dyes with excellent light and wash fastness properties. This compound is critically needed by manufacturers in the textile, leather, ink, and specialty polymer industries seeking to develop high-performance pigments and dyes.

Application

• Primary Textile Dye Intermediate: A key precursor for synthesizing acid dyes and direct dyes used on wool, silk, nylon, and paper.
• Leather Coloring Agent: Employed in the production of dyes for high-quality leather finishing, providing rich, durable colors.
• Inkjet and Printing Ink Formulation: Used to create specialized pigments for inks requiring high color strength and stability.
• Functional Polymer Additive: Incorporated into certain polymers to impart specific color characteristics or act as a functional monomer.
• Research & Development: Serves as a standard or building block in chemical research for developing new chromophores and advanced materials.
• Specialty Coatings: Utilized in the formulation of colored coatings where specific azo-based pigments are required.

Basic Information

Product Name	Sodium 4-[[4-[(2-Hydroxy-1-Naphthyl)Azo]-3-Methylphenyl]Azo]Benzenesulphonate
CAS No.	84852-29-9
Molecular Formula	C23H16N4NaO4S
Molecular Weight	467.45 g/mol
Synonyms	Benzenesulfonic acid, 4-[[4-[(2-hydroxy-1-naphthalenyl)azo]-3-methylphenyl]azo]-, sodium salt (1:1); C.I. 26080; Acid Orange 67 (related class); Sodium 4-((4-((2-hydroxynaphthalen-1-yl)diazenyl)-3-methylphenyl)diazenyl)benzenesulfonate; Azo dye intermediate OA-67; 4-[[4-[(2-Hydroxy-1-naphthyl)azo]-3-methylphenyl]azo]benzenesulphonic acid sodium salt; Light Fast Orange G (related shade)
EINECS	Contact for details

Quality Control

Our Sodium 4-[[4-[(2-Hydroxy-1-Naphthyl)Azo]-3-Methylphenyl]Azo]Benzenesulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) detailing key specifications such as assay, impurity profile, and physical properties. Our quality commitment ensures the material meets the high standards required for industrial synthesis and R&D applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water, slightly soluble in ethanol

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