Description

Sodium 4-[[4-[Nitroanilino]Phenyl]Azo]Benzenesulphonate is a specialized azo dye intermediate characterized by its distinct chemical structure, which is critical for imparting color and functional properties in advanced formulations. This compound matters for its role as a precise chemical building block, enabling the synthesis of high-performance dyes and pigments with specific shade and fastness properties. Industrial manufacturers in the textile, ink, and specialty chemical sectors require this intermediate to develop products demanding consistent quality and reliable batch-to-batch performance.

Application

• Primary intermediate for the synthesis of azo disperse dyes and pigments used in textile coloring.
• Key precursor in manufacturing specialty inks for packaging and industrial printing applications.
• Used in the production of colorants for plastics and polymers to achieve specific hues.
• Employed in research and development of novel functional dyes for non-textile applications.
• Potential use as a chemical reagent in analytical chemistry and photochemical studies.

Basic Information

Product Name	Sodium 4-[[4-[Nitroanilino]Phenyl]Azo]Benzenesulphonate
CAS No.	85252-31-9
Molecular Formula	C18H13N4NaO5S
Molecular Weight	420.37 g/mol
Synonyms	Benzenesulfonic acid, 4-[[4-[(4-nitrophenyl)amino]phenyl]azo]-, sodium salt; Sodium 4-((4-((4-nitrophenyl)amino)phenyl)diazenyl)benzenesulfonate; C.I. Disperse Yellow 42 (related); Azo dye intermediate 85252-31-9; 4-[(4-[(4-Nitrophenyl)amino]phenyl)azo]benzenesulfonic acid sodium salt; 4-[[4-(4-Nitroanilino)phenyl]azo]benzenesulphonic acid sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 4-[[4-[Nitroanilino]Phenyl]Azo]Benzenesulphonate is produced under a stringent quality management system to ensure high purity and batch-to-batch consistency. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation. Certificates of Analysis (COA) detailing all relevant specifications 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from 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.