Description

Sodium 3-[[4-[Ethyl(Phenylmethyl)Amino]Phenyl]Azo]-4-[(4-Methylphenyl)Sulphonyl]Benzenesulphonate is a high-purity, synthetic organic compound belonging to the azo dye class, valued for its specific chromophoric properties. This chemical is engineered to deliver consistent performance and color strength in demanding industrial applications. It is primarily utilized by manufacturers in the textile, ink, and specialty polymer industries where precise coloration and stability are critical.

Application

• Textile Dyeing: As a key intermediate or colorant for synthetic fibers like polyester and nylon, providing vibrant and wash-fast hues.
• Ink Formulation: Used in the production of industrial inks for packaging, printing, and coding applications requiring specific color standards.
• Plastic and Polymer Coloring: Imparts color to engineering plastics and polymers during the manufacturing process.
• Research & Development: Serves as a standard or reagent in chemical research for developing new dyes, pigments, and functional materials.
• Specialty Coatings: Employed in formulations for coatings where specific optical properties are required.

Basic Information

Product Name	Sodium 3-[[4-[Ethyl(Phenylmethyl)Amino]Phenyl]Azo]-4-[(4-Methylphenyl)Sulphonyl]Benzenesulphonate
CAS No.	71598-25-9
Molecular Formula	C28H26N3NaO5S2
Molecular Weight	571.64 g/mol
Synonyms	Benzenesulfonic acid, 3-[[4-[ethyl(phenylmethyl)amino]phenyl]azo]-4-[(4-methylphenyl)sulfonyl]-, sodium salt (1:1); Sodium 3-[[4-[ethyl(benzyl)amino]phenyl]azo]-4-(p-tolylsulfonyl)benzenesulfonate; Azo dye intermediate 71598-25-9; C.I. Solvent Yellow; Disperse dye intermediate; 4-[(4-Methylphenyl)sulfonyl]-3-[[4-[ethyl(phenylmethyl)amino]phenyl]azo]benzenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our production of Sodium 3-[[4-[Ethyl(Phenylmethyl)Amino]Phenyl]Azo]-4-[(4-Methylphenyl)Sulphonyl]Benzenesulphonate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure compliance with agreed specifications for purity, color strength, and impurity profiles. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory needs.

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 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	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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