Description

Sodium 4-[4-[[3-(Anilinosulphonyl)-p-Tolyl]Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]-2,5-Dichlorobenzenesulphonate is a high-purity, synthetic organic chemical compound primarily used as a specialized dye intermediate. This product is valued for its precise chemical structure, which is critical for imparting specific color properties and performance characteristics in advanced applications. It is essential for manufacturers in the textile dyeing, ink formulation, and specialty chemical synthesis sectors who require consistent quality and reliable supply chains for their production processes.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of high-performance azo dyes for textiles and fibers.
• Specialty Ink Manufacturing: Used in the production of colorants for industrial inks, including those for packaging and security printing.
• Functional Colorant Synthesis: Serves as a precursor for creating pigments and dyes with specific light-fastness and chemical resistance properties.
• Research & Development: Employed in chemical R&D labs for developing new chromophores and studying structure-property relationships in color chemistry.
• Analytical Chemistry Reagent: Can be utilized as a standard or reagent in specific analytical methods for dye identification and quantification.

Basic Information

Product Name	Sodium 4-[4-[[3-(Anilinosulphonyl)-p-Tolyl]Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]-2,5-Dichlorobenzenesulphonate
CAS No.	6359-99-5
Molecular Formula	C29H22Cl2N5NaO6S2
Molecular Weight	694.53 g/mol
Synonyms	Acid Red 337; C.I. 17200; Sodium 2,5-dichloro-4-[4-[[3-[(phenylamino)sulfonyl]-4-methylphenyl]azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonate; 1,3-Benzenedisulfonic acid, 4-[4-[[3-[(phenylamino)sulfonyl]-4-methylphenyl]azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]-2,5-dichloro-, sodium salt; Benzenesulfonic acid, 2,5-dichloro-4-[4-[[3-[(phenylamino)sulfonyl]-p-tolyl]azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]-, sodium salt
EINECS	228-787-7

Quality Control

Our Sodium 4-[4-[[3-(Anilinosulphonyl)-p-Tolyl]Azo]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]-2,5-Dichlorobenzenesulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) detailing all test results are provided to guarantee traceability and compliance with your quality requirements.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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