Description

4-(3'-Phenyl-2'-Pyrazolin-1'-Yl)Benzenesulfonyl Chloride is a specialized organic intermediate featuring a reactive sulfonyl chloride group attached to a pyrazoline-substituted aromatic system. This compound is valued for its role as a key building block in the synthesis of more complex molecules, particularly in pharmaceutical and agrochemical research. It is primarily sought by R&D chemists and process development scientists working in medicinal chemistry and fine chemical manufacturing.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and inflammatory pathways.
• Agrochemical Synthesis: Used in the research and development of new herbicides and fungicides, leveraging its heterocyclic structure for biological activity.
• Dye and Pigment Manufacturing: Acts as an intermediate for creating specialized azo dyes and functional pigments due to its aromatic and sulfonyl chloride components.
• Material Science Research: Employed in the development of advanced polymers and functional materials, where the sulfonyl chloride group enables covalent attachment to other molecules.
• Chemical Biology Probes: Utilized in the design of activity-based probes and labeling reagents for studying enzyme function and protein interactions.

Basic Information

Item	Details
Product Name	4-(3'-Phenyl-2'-Pyrazolin-1'-Yl)Benzenesulfonyl Chloride
CAS No.	41479-13-4
Molecular Formula	C15H13ClN2O2S
Molecular Weight	320.79 g/mol
Synonyms	4-(3-Phenyl-2-pyrazolin-1-yl)benzenesulfonyl chloride; 1-(4-(Chlorosulfonyl)phenyl)-3-phenyl-2-pyrazoline; 4-(3-Phenyl-1H-pyrazol-1-yl)benzenesulfonyl chloride; 41479-13-4; 1-(4-Chlorosulfonylphenyl)-3-phenyl-2-pyrazoline; 3-Phenyl-1-[4-(sulfonylchloride)phenyl]-2-pyrazoline; 4-(3-Phenylpyrazol-1-yl)benzenesulfonyl chloride
EINECS	Contact for details

Quality Control

Our production of 4-(3'-Phenyl-2'-Pyrazolin-1'-Yl)Benzenesulfonyl Chloride adheres to stringent in-process controls and final release testing to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques including HPLC, NMR, and IR spectroscopy for comprehensive characterization. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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