Description

3-Fluoro-4-(1H-Pyrazol-1-Yl)-Benzene-1-Sulfonyl Chloride is a high-purity, multi-functional chemical building block essential for advanced organic synthesis. This compound is valued for its sulfonyl chloride group, which serves as a key reactive handle for creating sulfonamides and other complex molecular architectures. It is primarily utilized by pharmaceutical R&D and agrochemical scientists in the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of drug candidates, particularly those targeting kinase inhibition and other therapeutic pathways.
• Agrochemical Research: Used to construct novel sulfonamide-based herbicides, fungicides, and plant growth regulators.
• Material Science: Serves as a monomer or cross-linking agent in the development of specialty polymers and functional materials.
• Chemical Biology: Employed as a probe or linker in bioconjugation chemistry and proteomics research.
• Custom Synthesis: A versatile starting material for contract research organizations (CROs) and CDMOs producing bespoke compounds for clients.

Basic Information

Product Name	3-Fluoro-4-(1H-Pyrazol-1-Yl)-Benzene-1-Sulfonyl Chloride
CAS No.	1097726-37-8
Molecular Formula	C9H6ClFN2O2S
Molecular Weight	260.67 g/mol
Synonyms	3-Fluoro-4-(1H-pyrazol-1-yl)benzenesulfonyl chloride; 1-(4-Chlorosulfonyl-2-fluorophenyl)-1H-pyrazole; 4-(1H-Pyrazol-1-yl)-3-fluorobenzenesulfonyl chloride; 2-Fluoro-4-(1H-pyrazol-1-yl)benzenesulfonyl chloride; 1097726-37-8; 3-Fluoro-4-(pyrazol-1-yl)benzenesulfonyl chloride; 3-Fluoro-4-(1H-pyrazol-1-yl)benzene-1-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our 3-Fluoro-4-(1H-Pyrazol-1-Yl)-Benzene-1-Sulfonyl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting full specifications are available upon request, supporting your regulatory and R&D documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic and moisture-sensitive nature, store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry place. Recommended storage temperature is 2-8°C for long-term stability. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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