Description

Sodium 5-Chloro-2-[[1-(2-Chlorophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]Benzenesulphonate is a high-purity azo dye intermediate essential for producing vibrant and stable colorants. This compound matters for its role in synthesizing specialized pigments and dyes with excellent light and wash fastness properties. It is primarily needed by manufacturers in the textile, ink, and specialty chemical industries seeking reliable intermediates for high-performance color applications.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a key building block in the synthesis of high-performance orange, red, and brown azo dyes.
• Textile Dyeing: Used in the production of dyes for coloring natural and synthetic fibers, valued for color strength and fastness.
• Ink Manufacturing: Incorporated into formulations for printing inks, including those for packaging and publications.
• Leather Coloring: Applied in the manufacture of dyes for the leather tanning and finishing industry.
• Plastic and Polymer Coloring: Utilized to create colorants for plastics and synthetic materials.
• Research & Development: Serves as a standard or experimental compound in chemical research for novel dye structures.

Basic Information

Product Name	Sodium 5-Chloro-2-[[1-(2-Chlorophenyl)-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-4-Yl]Azo]Benzenesulphonate
CAS No.	82294-71-1
Molecular Formula	C16H11Cl2N4NaO4S
Molecular Weight	465.25 g/mol
Synonyms	Benzenesulfonic acid, 5-chloro-2-[[1-(2-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-, sodium salt; C.I. Acid Orange 156; Sodium 5-chloro-2-[(1-(2-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo]benzenesulfonate; Acid Orange 156; Azo dye intermediate 82294-71-1; 1H-Pyrazole-4-azobenzenesulfonic acid derivative
EINECS	Contact for details

Quality Control

Our Sodium 5-Chloro-2-[[1-(2-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 it meets precise specifications for purity, identity, and composition. Certificates of Analysis (COA) detailing results for assay, impurity profile, and physical parameters 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.

Specification

Item	Specification
Appearance	Orange to red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water

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