Description

Sodium 4-[[4-[(4-Ethoxy-m-Tolyl)Azo]-2,5-Dimethoxyphenyl]Azo]Benzenesulphonate is a high-purity synthetic organic compound belonging to the class of azo dyes and colorants. This product is valued for its strong colorant properties and chemical stability, making it a critical component in specialized industrial formulations. It is primarily sought by manufacturers in the textile, ink, and specialty polymer industries requiring consistent and reliable dye intermediates.

Application

• Textile Dyeing: As a key intermediate for dyeing synthetic fibers, providing vibrant and durable coloration.
• Ink Manufacturing: Used in the formulation of printing inks for packaging, publications, and specialty printing applications.
• Pigment Production: Serves as a precursor in the synthesis of high-performance organic pigments for plastics and coatings.
• Research & Development: Employed in chemical research for developing new colorants and studying azo compound chemistry.
• Specialty Polymers: Incorporated into polymers to impart specific color characteristics for identification or aesthetic purposes.

Basic Information

Product Name	Sodium 4-[[4-[(4-Ethoxy-m-Tolyl)Azo]-2,5-Dimethoxyphenyl]Azo]Benzenesulphonate
CAS No.	68444-09-7
Molecular Formula	C29H27N4NaO7S
Molecular Weight	598.60 g/mol
Synonyms	Benzenesulfonic acid, 4-[[4-[(4-ethoxy-3-methylphenyl)azo]-2,5-dimethoxyphenyl]azo]-, sodium salt; C.I. Solvent Yellow 77; Azo dye intermediate 68444-09-7; Sodium 4-[(4-[(4-ethoxy-3-methylphenyl)hydrazinylidene]-2,5-dimethoxyphenyl)hydrazinylidene]benzenesulfonate; 4-[[4-[(4-Ethoxy-m-tolyl)azo]-2,5-dimethoxyphenyl]azo]benzenesulphonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 4-[[4-[(4-Ethoxy-m-Tolyl)Azo]-2,5-Dimethoxyphenyl]Azo]Benzenesulphonate is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, color strength, and chemical composition. Certificates of Analysis (COA) documenting key parameters are available upon request 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). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water, DMF

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