Description

4-Chloro-3-[4-[[5-Chloro-2-(2-Chlorophenoxy)Phenyl]Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid is a high-purity, complex azo dye intermediate with a distinctive molecular structure. This compound is valued for its role in synthesizing specialized pigments and colorants with enhanced performance properties. It is primarily required by manufacturers in the dye and pigment, specialty chemical, and advanced material industries for research and production applications.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a key building block in the synthesis of high-performance, chlorinated azo dyes, particularly for applications requiring specific color fastness and stability.
• Specialty Colorant Production: Used in the manufacture of complex organic pigments for inks, coatings, and plastics where precise molecular control is critical.
• Research & Development: Employed in chemical R&D for developing novel chromophores and functional dyes with tailored optical properties.
• Textile Dye Synthesis: A precursor for dyes used in textile processing, especially for fibers requiring dyes with specific substantivity and durability.
• Functional Material Synthesis: Potential use in creating advanced materials where the azo group and sulphonic acid functionality can be leveraged for non-linear optics or sensor applications.

Basic Information

Product Name	4-Chloro-3-[4-[[5-Chloro-2-(2-Chlorophenoxy)Phenyl]Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid
CAS No.	94021-38-2
Molecular Formula	C22H15Cl3N4O4S
Molecular Weight	537.80 g/mol
Synonyms	Benzenesulfonic acid, 4-chloro-3-[4-[[5-chloro-2-(2-chlorophenoxy)phenyl]azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]-; 94021-38-2; CI 26080; Azo dye intermediate 94021-38-2; 1H-Pyrazole-1-benzenesulfonic acid derivative; 4-Chloro-3-(4-((5-chloro-2-(2-chlorophenoxy)phenyl)diazenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulfonic acid
EINECS	Contact for details

Quality Control

Our production of 4-Chloro-3-[4-[[5-Chloro-2-(2-Chlorophenoxy)Phenyl]Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent composition, and batch-to-batch reliability. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided and 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). This product is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed after opening to minimize exposure to atmospheric moisture and light.

Specification

Item	Specification
Appearance	Yellow to Orange Powder
Identification (IR)	Conforms to Structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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