Description

Sodium p-[4-[[5-Chloro-2-(2-Chlorophenoxy)Phenyl]Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate is a high-purity, synthetic organic chemical compound, primarily recognized as a specialized azo dye intermediate. Its precise molecular structure, identified by CAS NO 83270-32-0, is engineered to deliver consistent color properties and performance in demanding applications. This product is essential for manufacturers in the textile, ink, and specialty polymer industries seeking reliable intermediates for producing vibrant and stable pigments and dyes.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a key building block in the synthesis of high-performance, chlorinated azo dyes, particularly for shades of yellow, orange, and red.
• Textile Dyeing: Used in the production of dyes for coloring synthetic and natural fibers, offering good light and wash fastness properties.
• Ink Formulation: Employed in the manufacture of industrial and printing inks, contributing to color strength and stability.
• Plastic and Polymer Coloring: Functions as a colorant intermediate for mass-coloration of plastics and engineering polymers.
• Research & Development: Utilized in chemical research for developing new chromophores and studying structure-property relationships in dye chemistry.
• Specialty Coatings: Applied in the synthesis of pigments for coatings that require specific chemical resistance.

Basic Information

Item	Detail
Product Name	Sodium p-[4-[[5-Chloro-2-(2-Chlorophenoxy)Phenyl]Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate
CAS No.	83270-32-0
Molecular Formula	C22H15Cl2N4O5SNa
Molecular Weight	541.34 g/mol
Synonyms	Benzenesulfonic acid, 4-[4,5-dihydro-3-methyl-5-oxo-4-[[5-chloro-2-(2-chlorophenoxy)phenyl]azo]-1H-pyrazol-1-yl]-, sodium salt; Sodium 4-[4,5-dihydro-3-methyl-5-oxo-4-[(5-chloro-2-(2-chlorophenoxy)phenyl)azo]-1H-pyrazol-1-yl]benzenesulfonate; Azo dye intermediate 83270-32-0; 1H-Pyrazole-1-benzenesulfonic acid derivative; CI Disperse Yellow 241 (related); Clariant Yellow F2R (related intermediate)
EINECS	Contact for details

Quality Control

Our production of Sodium p-[4-[[5-Chloro-2-(2-Chlorophenoxy)Phenyl]Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent chemical structure, and optimal performance as a dye intermediate. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to Orange powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 1.0%

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