Description

1-Isopropyl-3,5-Dimethyl-1H-Pyrazole-4-Sulfonyl Chloride is a specialized heterocyclic sulfonyl chloride derivative, serving as a critical high-purity building block in advanced organic synthesis. Its primary value lies in its reactivity as a sulfonylation agent, enabling the efficient introduction of the sulfonyl functional group into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science sectors who require reliable, high-quality intermediates for developing new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in the development of sulfonamide-based therapeutics.
• Agrochemical Synthesis: Used in creating advanced herbicides, fungicides, and insecticides where the sulfonyl moiety is crucial for bioactivity.
• Material Science Research: Employed in the development of specialty polymers, ligands for catalysis, and other functional organic materials.
• Chemical Biology Probes: Acts as a reactive handle for labeling or modifying biomolecules in proteomics and bioconjugation studies.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs and research institutions for bespoke synthetic routes and scale-up projects.

Basic Information

Product Name	1-Isopropyl-3,5-Dimethyl-1H-Pyrazole-4-Sulfonyl Chloride
CAS No.	1183269-60-4
Molecular Formula	C8H13ClN2O2S
Molecular Weight	236.72 g/mol
Synonyms	4-Sulfonyl Chloride-1-isopropyl-3,5-dimethylpyrazole; 1H-Pyrazole-4-sulfonyl chloride, 1-(1-methylethyl)-3,5-dimethyl-; 3,5-Dimethyl-1-isopropyl-1H-pyrazole-4-sulfonyl chloride; 1-Isopropyl-3,5-dimethylpyrazole-4-sulfonyl chloride; Isopropyldimethylpyrazole sulfonyl chloride
EINECS	Contact for details

Quality Control

Our 1-Isopropyl-3,5-Dimethyl-1H-Pyrazole-4-Sulfonyl Chloride is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent derivative, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation from moisture and ensure prolonged stability. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases and oxidizing agents.

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%
Residue on Ignition	≤ 0.1%

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