Description

Sodium 4-[[4-[(2-Nitrophenyl)Amino]Phenyl]Azo]Benzenesulphonate is an azo dye intermediate of significant commercial importance, characterized by its specific sulfonated aromatic structure. This compound is valued for its role in synthesizing high-performance dyes and pigments, offering excellent color fastness and solubility properties. It is primarily sought by manufacturers in the textile, leather, and specialty chemical industries for producing vibrant and durable colorants.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloring.
• Key component in the production of leather dyes, providing deep, uniform shades.
• Used in the formulation of inks for various printing applications.
• Employed in the manufacturing of paper colorants.
• Acts as a precursor for specialty chemicals and research compounds in analytical chemistry.
• Potential use in the development of functional dyes for non-textile applications.

Basic Information

Product Name	Sodium 4-[[4-[(2-Nitrophenyl)Amino]Phenyl]Azo]Benzenesulphonate
CAS No.	66214-46-8
Molecular Formula	C24H17N4NaO5S
Molecular Weight	496.47 g/mol
Synonyms	Benzenesulfonic acid, 4-[[4-[(2-nitrophenyl)amino]phenyl]azo]-, sodium salt; C.I. Disperse Yellow 42; Sodium 4-[(4-[(2-nitrophenyl)amino]phenyl)azo]benzenesulfonate; 2-Nitro-4'-[4-(phenylazo)phenyl]aminoazobenzene-4-sulfonic acid sodium salt; 4-[[4-[(2-Nitrophenyl)amino]phenyl]azo]benzenesulfonic acid sodium salt; Azoic Diazo Component 42; Disperse Yellow 42 sodium salt
EINECS	Contact for details

Quality Control

Our production of Sodium 4-[[4-[(2-Nitrophenyl)Amino]Phenyl]Azo]Benzenesulphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. The material is manufactured under a quality system compliant with ISO standards. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, impurity profile, and physical characteristics, available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

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

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