Description

Sodium 4-Chloro-3-[[4-[(4-Ethoxyphenyl)Azo]Phenyl]Azo]Benzenesulphonate is a high-purity, synthetic azo dye intermediate essential for producing vibrant and stable colors. This compound matters for its role in creating specialized dyes and pigments with excellent light and wash fastness properties. Industries requiring precise color formulation, such as textile manufacturing, ink production, and specialty coatings, rely on this consistent-quality intermediate.

Application

• Primary Textile Dye Intermediate: A key precursor for synthesizing azo dyes used in coloring cotton, nylon, and other synthetic fibers.
• Inkjet and Printing Ink Formulation: Used in the manufacture of high-performance inks for digital and industrial printing applications.
• Specialty Coatings and Paints: Imparts color and stability in coatings for plastics,纸张, and other industrial materials.
• Leather Dyeing: Employed in the production of dyes for achieving deep, uniform colors on leather goods.
• Research & Development: Serves as a critical building block in chemical research for developing new colorants and functional materials.
• Paper Coloring: Used in the manufacture of dyes for specialty and decorative papers.

Basic Information

Product Name	Sodium 4-Chloro-3-[[4-[(4-Ethoxyphenyl)Azo]Phenyl]Azo]Benzenesulphonate
CAS No.	68959-01-3
Molecular Formula	C26H20ClN4NaO4S
Molecular Weight	559.0 g/mol (approx.)
Synonyms	Benzenesulfonic acid, 4-chloro-3-[[4-[(4-ethoxyphenyl)azo]phenyl]azo]-, sodium salt; C.I. Direct Yellow 50; Direct Yellow 50; Sodium 4-chloro-3-((4-((4-ethoxyphenyl)diazenyl)phenyl)diazenyl)benzenesulfonate; 4-Chloro-3-((4-((4-ethoxyphenyl)diazenyl)phenyl)diazenyl)benzenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 4-Chloro-3-[[4-[(4-Ethoxyphenyl)Azo]Phenyl]Azo]Benzenesulphonate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Every lot is tested against stringent in-house specifications, which typically include identity confirmation, assay, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee compliance with your technical requirements.

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 incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Contact for details
Heavy Metals	≤ 20 ppm

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