Description

1-Isopropyl-3-Methyl-1H-Pyrazole-5-Sulfonyl Chloride is a high-purity, specialized sulfonyl chloride derivative used as a critical building block in advanced organic synthesis. This compound is valued for its reactivity as a sulfonylation reagent, enabling the introduction of the sulfonyl functional group into target molecules. It is primarily utilized by research and development chemists and process scale-up teams in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and intermediates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for candidates targeting various disease pathways.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and insecticides, where the sulfonyl moiety is a common pharmacophore.
• Functional Material Development: Serves as a building block for creating specialized polymers, ligands, or dyes with tailored properties.
• Chemical Biology & Proteomics: Employed in the design and synthesis of activity-based probes (ABPs) or other molecular tools for studying enzyme function.
• Custom Synthesis & Contract Manufacturing: A vital reagent for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the life sciences sector.
• Academic & Industrial R&D: Facilitates exploratory chemistry in both academic laboratories and corporate R&D centers for new compound library generation.

Basic Information

Product Name	1-Isopropyl-3-Methyl-1H-Pyrazole-5-Sulfonyl Chloride
CAS No.	1245823-44-2
Molecular Formula	C7H11ClN2O2S
Molecular Weight	222.69 g/mol
Synonyms	1-Isopropyl-3-methyl-1H-pyrazole-5-sulfonyl chloride; 3-Methyl-1-(propan-2-yl)-1H-pyrazole-5-sulfonyl chloride; 1H-Pyrazole-5-sulfonyl chloride, 1-(1-methylethyl)-3-methyl-; 5-Sulfonyl chloride-1-isopropyl-3-methylpyrazole; 1-Isopropyl-3-methylpyrazole-5-sulfonyl chloride; 1-(Isopropyl)-3-methyl-1H-pyrazole-5-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our 1-Isopropyl-3-Methyl-1H-Pyrazole-5-Sulfonyl Chloride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity suitable for sensitive synthetic applications. We provide comprehensive Certificates of Analysis (COA) with each batch, detailing key parameters such as assay (purity), identity confirmation, and impurity profiles. Our quality management system supports compliance with cGMP and ISO standards for research and development materials.

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). This material is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to prevent decomposition. Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage.

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.