Description

5-Methyl-3-Isoxazolemethanesulfonyl Chloride is a high-purity, reactive sulfonyl chloride derivative used as a critical building block in advanced organic synthesis. This compound is valued for its role in introducing the versatile 5-methyl-3-isoxazolemethanesulfonyl moiety, enabling the creation of novel molecules with targeted properties. It is primarily sought after by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of active ingredients and intermediates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly in the development of enzyme inhibitors and receptor modulators.
• Agrochemical Synthesis: Used to construct active ingredients for crop protection agents, including herbicides and fungicides.
• Chemical Biology Probes: Employed in the design and synthesis of activity-based probes for studying protein function and enzyme activity.
• Material Science Research: Serves as a functionalization agent for modifying polymers or surfaces to impart specific chemical properties.
• Custom Synthesis & Contract Manufacturing: A vital reagent for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) producing specialized compounds for clients.

Basic Information

Product Name	5-Methyl-3-Isoxazolemethanesulfonyl Chloride
CAS No.	1000932-59-1
Molecular Formula	C5H6ClNO3S
Molecular Weight	195.62 g/mol
Synonyms	5-Methylisoxazole-3-methanesulfonyl chloride; 3-Isoxazolemethanesulfonyl chloride, 5-methyl-; (5-Methyl-3-isoxazolyl)methanesulfonyl chloride; 5-Methyl-3-isoxazolesulfonyl chloride methylene; 5-Methyl-1,2-oxazole-3-methanesulfonyl chloride
EINECS	Contact for details

Quality Control

Our 5-Methyl-3-Isoxazolemethanesulfonyl Chloride is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and moisture analysis, to ensure high chemical purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications.

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 strong acids and organic solvents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	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.