Description

4-[4-[[4-[Ethyl[2-[(Methylsulfonyl)Amino]Ethyl]Amino]-2-Methylphenyl]Methylene]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulfonic Acid Potassium Salt is a high-purity, specialized organic salt with a complex molecular structure designed for advanced chemical synthesis. This compound matters as a critical intermediate or functional additive in the production of sophisticated dyes, pigments, and high-performance materials where specific sulfonic acid and pyrazolone functionalities are required. Industries involved in the research and manufacturing of specialty chemicals, advanced colorants, and pharmaceutical intermediates will find this material essential for developing products with enhanced solubility, stability, and targeted properties.

Application

• Key Intermediate for Dyes and Pigments: Primarily used in the synthesis of high-value, water-soluble azo dyes and reactive dyes, imparting excellent color fastness and solubility.
• Functional Additive in Specialty Polymers: Acts as a monomer or additive to introduce sulfonate groups into polymers, enhancing hydrophilicity, dyeability, or ionic conductivity.
• Pharmaceutical Intermediate: Serves as a building block in the research and development of novel active pharmaceutical ingredients (APIs), particularly those requiring a sulfonated pyrazolone core.
• Research & Development Chemical: Utilized in academic and industrial R&D labs for exploring new organic compounds, catalysts, or materials with specific electronic or optical properties.
• Analytical Reagent: Potential use as a standard or reagent in analytical chemistry for method development and calibration.
• Photoactive Material Precursor: May be employed in the development of materials for optoelectronic applications due to its conjugated structure.

Basic Information

Product Name	4-[4-[[4-[Ethyl[2-[(Methylsulfonyl)Amino]Ethyl]Amino]-2-Methylphenyl]Methylene]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulfonic Acid Potassium Salt
CAS No.	94491-22-2
Molecular Formula	C24H29KN4O6S2
Molecular Weight	572.73 g/mol
Synonyms	Potassium 4-[4-[[4-[ethyl[2-[(methylsulfonyl)amino]ethyl]amino]-2-methylphenyl]methylene]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonate; Benzenesulfonic acid, 4-[4-[[4-[ethyl[2-[(methylsulfonyl)amino]ethyl]amino]-2-methylphenyl]methylene]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]-, potassium salt; C.I. Reactive Yellow 145; Reactive Yellow 145; 4-(4-((4-(Ethyl(2-((methylsulfonyl)amino)ethyl)amino)-2-methylphenyl)methylene)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid potassium salt
EINECS	Contact for details

Quality Control

Our production of 4-[4-[[4-[Ethyl[2-[(Methylsulfonyl)Amino]Ethyl]Amino]-2-Methylphenyl]Methylene]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulfonic Acid Potassium Salt adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing including HPLC for purity, IR for identification, and residual solvent analysis to ensure compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residual Solvents (GC)	Meets ICH guidelines
Heavy Metals	≤ 20 ppm

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