Description

Sodium 4-Chloro-3-[[1-(4-Chlorophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]Benzenesulphonate is a high-purity, synthetic organic chemical compound valued for its role as a specialized intermediate and colorant precursor. Its complex azo-pyrazolone structure makes it a critical component in the synthesis of high-performance pigments and dyes, offering excellent color fastness and thermal stability. This product is essential for manufacturers in the pigment, dye, and specialty chemical industries seeking reliable intermediates for advanced material formulations.

Application

• Primary Intermediate for Azo Pigments: Serves as a key building block in the synthesis of high-performance organic pigments, particularly yellows, oranges, and reds.
• Specialty Dye Manufacturing: Used in the production of dyes for plastics, inks, and coatings that require enhanced lightfastness and chemical resistance.
• Functional Colorant for Polymers: Incorporated into masterbatches for coloring engineering plastics and synthetic fibers.
• Research & Development: Employed in academic and industrial R&D for developing novel chromophores and functional materials.
• Liquid Crystal Display (LCD) Color Filters: Potential use as a precursor for colorants in electronic display applications.
• Analytical Chemistry Reagent: May be used as a standard or reagent in chromatographic analysis and method development.

Basic Information

Item	Details
Product Name	Sodium 4-Chloro-3-[[1-(4-Chlorophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]Benzenesulphonate
CAS No.	37078-96-9
Molecular Formula	C22H15Cl2N4NaO4S
Molecular Weight	525.34 g/mol
Synonyms	Benzenesulfonic acid, 4-chloro-3-[[1-(4-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-, sodium salt; C.I. Pigment Yellow 183; PY 183; Sodium 4-chloro-3-((1-(4-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)diazenyl)benzenesulfonate; 4-Chloro-3-((1-(4-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)diazenyl)benzenesulfonic acid sodium salt; 1H-Pyrazole-4-diazonium, 1-(4-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-, inner salt, 4-(4-chloro-3-sulfophenyl)azo-, sodium salt
EINECS	Contact for details

Quality Control

Our Sodium 4-Chloro-3-[[1-(4-Chlorophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]Benzenesulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical identity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications 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, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Yellow to Orange Powder
Identification (IR)	Conforms to Structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Clear Solution

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