Description

5-Methyl-3-Phenyl-4-Isoxazolesulfonyl Chloride is a versatile and highly reactive sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its primary value lies in its ability to act as a sulfonylation reagent, facilitating the introduction of the sulfonyl functional group into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing novel sulfonamide-based drug candidates with potential therapeutic applications.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides.
• Material Science Research: Employed in the development of specialty polymers and functional materials requiring sulfonyl group incorporation.
• Chemical Biology & Proteomics: Acts as a reactive handle for labeling or modifying biomolecules in research applications.
• Custom Synthesis & Contract Manufacturing: A vital reagent for fine chemical and custom synthesis houses serving diverse R&D sectors.

Basic Information

Product Name	5-Methyl-3-Phenyl-4-Isoxazolesulfonyl Chloride
CAS No.	857283-56-8
Molecular Formula	C10H8ClNO3S
Molecular Weight	257.69 g/mol
Synonyms	4-Isoxazolesulfonyl chloride, 5-methyl-3-phenyl-; 3-Phenyl-5-methyl-4-isoxazolesulfonyl chloride; 5-Methyl-3-phenylisoxazole-4-sulfonyl chloride; 857283-56-8; 5-Methyl-3-phenyl-1,2-oxazole-4-sulfonyl chloride
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure batch-to-batch consistency and compliance with industry standards. We employ advanced analytical techniques including HPLC, NMR, and IR spectroscopy for comprehensive characterization. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area 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 decomposition. Keep away from strong acids and incompatible materials.

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.