Description

1,5-Diethyl-1H-Pyrazole-4-Sulfonyl Chloride is a versatile and reactive sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its primary value lies in its role as a key intermediate for constructing complex molecules, particularly in the pharmaceutical and agrochemical sectors. This compound is essential for researchers and manufacturers developing active pharmaceutical ingredients (APIs), crop protection agents, and functional materials who require high-purity, reliable synthetic intermediates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly for sulfonamide-based therapeutics targeting various diseases.
• Agrochemical Synthesis: Used in the development of next-generation herbicides, fungicides, and insecticides, leveraging the pyrazole-sulfonyl scaffold for bioactivity.
• Material Science Research: Employed in the creation of specialized polymers, ligands for catalysis, and other functional organic materials.
• Chemical Biology & Proteomics: Acts as a reactive handle for bioconjugation and the development of chemical probes to study biological systems.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for bespoke synthesis projects requiring high-quality building blocks.

Basic Information

Item	Details
Product Name	1,5-Diethyl-1H-Pyrazole-4-Sulfonyl Chloride
CAS No.	1197230-97-9
Molecular Formula	C7H11ClN2O2S
Molecular Weight	222.69 g/mol
Synonyms	1,5-Diethyl-1H-pyrazole-4-sulfonyl chloride; 1H-Pyrazole-4-sulfonyl chloride, 1,5-diethyl-; 1,5-Diethylpyrazole-4-sulfonyl chloride; 4-(Chlorosulfonyl)-1,5-diethyl-1H-pyrazole; 1,5-Diethyl-4-sulfonylchloride pyrazole
EINECS	Contact for details

Quality Control

Our 1,5-Diethyl-1H-Pyrazole-4-Sulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and commercial synthesis. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

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 or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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