Description

Benzenesulfonic Acid, 2,5-Dichloro-4-[4,5-Dihydro- 3-Methyl-4-[[4-[[(4-Methylphenyl)Sulfonyl]Oxy]Phenyl ]Azo]-5-Oxo-1H-Pyrazol-1-Yl]-, Potassium Salt is a high-purity, specialized organic salt with a complex azo and pyrazolone-based structure. This compound matters for its role as a critical functional intermediate in advanced chemical synthesis, offering precise reactivity for creating high-value products. It is primarily needed by manufacturers in the dye and pigment, pharmaceutical intermediate, and specialty chemical industries seeking reliable and consistent raw materials for complex formulations.

Application

• Key Intermediate for High-Performance Dyes and Pigments: Used in the synthesis of specialized azo dyes, particularly for applications requiring specific color fastness and stability.
• Pharmaceutical Intermediate Synthesis: Serves as a building block in the research and development of active pharmaceutical ingredients (APIs) with complex heterocyclic structures.
• Specialty Chemical Manufacturing: Employed in the production of functional chemicals, including light stabilizers, polymer additives, and photographic chemicals.
• Research & Development (R&D): Utilized in academic and industrial laboratories for exploring new organic reactions and material properties.
• Fine Chemical Production: Acts as a precursor for other fine chemicals where its specific sulfonate and azo functionalities are required.

Basic Information

Item	Details
Product Name	Benzenesulfonic Acid, 2,5-Dichloro-4-[4,5-Dihydro- 3-Methyl-4-[[4-[[(4-Methylphenyl)Sulfonyl]Oxy]Phenyl ]Azo]-5-Oxo-1H-Pyrazol-1-Yl]-, Potassium Salt
CAS No.	74082-25-0
Molecular Formula	C23H17Cl2KN4O6S2
Molecular Weight	619.53 g/mol
Synonyms	Potassium 2,5-dichloro-4-[4,5-dihydro-3-methyl-4-[[4-[(4-methylphenyl)sulfonyloxy]phenyl]azo]-5-oxo-1H-pyrazol-1-yl]benzenesulfonate; 74082-25-0; 2,5-Dichloro-4-[4,5-dihydro-3-methyl-4-[[4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo]-5-oxo-1H-pyrazol-1-yl]benzenesulfonic acid potassium salt; Benzenesulfonic acid, 2,5-dichloro-4-[4,5-dihydro-3-methyl-4-[[4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo]-5-oxo-1H-pyrazol-1-yl]-, potassium salt (1:1)
EINECS	Contact for details

Quality Control

Our Benzenesulfonic Acid, 2,5-Dichloro-4-[4,5-Dihydro- 3-Methyl-4-[[4-[[(4-Methylphenyl)Sulfonyl]Oxy]Phenyl ]Azo]-5-Oxo-1H-Pyrazol-1-Yl]-, Potassium Salt is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing key specifications such as assay, impurity profile, and physical characteristics are available upon request, supporting compliance with your internal quality standards.

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). Keep away from incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Solid powder or crystals
Color	Characteristic color (e.g., yellow to orange)
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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