Description

Sodium 4-[[4-[4-Nitrophenyl]Anilino]Azo]Benzenesulphonate is a specialized azo dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing high-performance dyes and pigments, offering excellent chromophoric properties. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries seeking to produce vivid and stable colorants.

Application

• Key intermediate in the synthesis of azo dyes and pigments for textiles and fabrics.
• Used in the production of colorants for inks, including printing and writing inks.
• Acts as a precursor for specialty dyes used in plastics and polymers.
• Potential use as a research chemical in analytical chemistry and photochemical studies.
• Employed in the development of functional dyes for non-textile applications.

Basic Information

Product Name	Sodium 4-[[4-[4-Nitrophenyl]Anilino]Azo]Benzenesulphonate
CAS No.	93940-11-5
Molecular Formula	C24H16N5NaO5S
Molecular Weight	509.47 g/mol
Synonyms	Benzenesulfonic acid, 4-[[4-[(4-nitrophenyl)amino]phenyl]azo]-, sodium salt; Sodium 4-[(4-[(4-nitrophenyl)amino]phenyl)azo]benzenesulfonate; 4-[(4-[(4-Nitrophenyl)amino]phenyl)azo]benzenesulfonic acid sodium salt; C.I. Disperse Yellow 42 (related); Azo dye intermediate 93940-11-5; 4-((4-((4-Nitrophenyl)amino)phenyl)diazenyl)benzenesulfonate sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 4-[[4-[4-Nitrophenyl]Anilino]Azo]Benzenesulphonate is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A Certificate of Analysis (COA) detailing specifications and 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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality.

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%
Residue on Ignition (Sulfated Ash)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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