Description

5-(5-Isoxazolyl)-2-Methyl-3-Furansulfonyl Chloride (Saltdata: Free) is a high-purity, specialized heterocyclic sulfonyl chloride building block. This compound is a critical intermediate for the synthesis of novel active pharmaceutical ingredients (APIs) and advanced agrochemicals, offering a unique reactive site for further functionalization. It is primarily utilized by research and development chemists and process scale-up teams in the pharmaceutical, agrochemical, and fine chemical industries seeking to develop new sulfonamide-based molecules.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel sulfonamide-based drug candidates targeting various therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides with unique modes of action.
• Chemical Biology Probe Development: Serves as a reactive handle for creating activity-based probes to study enzyme function and protein interactions.
• Material Science Research: Potential monomer or cross-linking agent in the development of specialty polymers with specific functional properties.
• Contract Research & Manufacturing (CRO/CMO): Supplied to organizations specializing in custom synthesis and process development for clients.
• Academic Research: Utilized in university and institutional labs for methodological studies in heterocyclic and sulfonamide chemistry.

Basic Information

Item	Details
Product Name	5-(5-Isoxazolyl)-2-Methyl-3-Furansulfonyl Chloride (Saltdata: Free)
CAS No.	924865-06-5
Molecular Formula	C8H6ClNO4S
Molecular Weight	247.66 g/mol
Synonyms	5-(1,2-Oxazol-5-yl)-2-methyl-3-furansulfonyl chloride; 2-Methyl-5-(isoxazol-5-yl)furan-3-sulfonyl chloride; 5-(Isoxazol-5-yl)-2-methylfuran-3-sulfonyl chloride; 3-Furansulfonyl chloride, 5-(5-isoxazolyl)-2-methyl-; 924865-06-5; 5-(5-Isoxazolyl)-2-methyl-3-furansulfonyl chloride (free base)
EINECS	Contact for details

Quality Control

Our 5-(5-Isoxazolyl)-2-Methyl-3-Furansulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and tests for residual solvents and moisture. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to ensure traceability and compliance with your research or production requirements.

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.

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%
Residual Solvents (GC)	Meets ICH guidelines

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