Description

4-Chloro-3-[4-[[4-(Dimethylamino)Phenyl]Methylene]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid is a high-purity, functionalized pyrazolone derivative with a sulfonic acid group, offering unique reactivity and solubility properties. This compound is valued for its role as a key synthetic intermediate and functional component in advanced chemical synthesis. It is primarily sought by research institutions and industrial manufacturers in the fine chemical, pharmaceutical, and specialty dye sectors for developing novel compounds and materials.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting specific receptor sites.
• Dye and Pigment Synthesis: Used in the production of specialized azo dyes and pigments, where its structure contributes to color fastness and specific hue properties.
• Chemical Research & Development: Acts as a versatile scaffold in medicinal chemistry and material science research for creating libraries of new chemical entities.
• Ligand and Chelating Agent Precursor: Its functional groups make it a suitable starting material for synthesizing complexing agents used in catalysis or metal ion sequestration.
• Analytical Reagent: Potential use in the development of chromogenic or fluorogenic reagents for analytical chemistry and diagnostic applications.
• Polymer Modification: Can be incorporated into polymers to introduce sulfonic acid functionality, altering solubility or ionic characteristics.

Basic Information

Item	Details
Product Name	4-Chloro-3-[4-[[4-(Dimethylamino)Phenyl]Methylene]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid
CAS No.	65036-66-0
Molecular Formula	C19H18ClN3O4S
Molecular Weight	419.88 g/mol
Synonyms	4-Chloro-3-(4-((4-(dimethylamino)benzylidene)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonic acid; 1-(4-Chloro-3-sulfophenyl)-4-[(4-dimethylaminophenyl)methylene]-3-methyl-2-pyrazolin-5-one; 65036-66-0; 4-Chloro-3-[4-[[4-(dimethylamino)phenyl]methylene]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonic acid; 1-(4-Chloro-3-sulfophenyl)-3-methyl-4-[(4-dimethylaminobenzylidene)]-2-pyrazolin-5-one
EINECS	Contact for details

Quality Control

Our 4-Chloro-3-[4-[[4-(Dimethylamino)Phenyl]Methylene]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications and test results are provided and 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). This compound is light-sensitive and should be stored away from direct light exposure. Keep the container tightly sealed to minimize contact with atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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