Description

5-(3-Methyl-5-Isoxazolyl)-2-Thiophenesulfonyl Chloride is a high-value sulfonyl chloride derivative, serving as a critical building block in advanced organic synthesis. Its core value lies in its dual heterocyclic structure, which enables the efficient introduction of the 5-(3-methyl-5-isoxazolyl)-2-thiophene moiety into target molecules, facilitating the development of novel compounds with specific functionalities. This intermediate is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for the synthesis of active ingredients and functional materials where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting specific enzyme inhibition or receptor modulation.
• Agrochemical Research: Used in developing new-generation herbicides, fungicides, and insecticides with enhanced efficacy and selectivity.
• Material Science: Building block for creating functional polymers, liquid crystals, or organic semiconductors that incorporate heterocyclic units.
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes for studying biological pathways and protein interactions.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis projects requiring complex sulfonamide or sulfonate ester formation.
• Academic & R&D: Fundamental reagent in university and institutional laboratories for methodological development and exploring new chemical spaces.

Basic Information

Product Name	5-(3-Methyl-5-Isoxazolyl)-2-Thiophenesulfonyl Chloride
CAS No.	1282218-14-7
Molecular Formula	C8H6ClNO3S2
Molecular Weight	263.72 g/mol
Synonyms	2-Thiophenesulfonyl chloride, 5-(3-methyl-5-isoxazolyl)-; 5-(3-Methylisoxazol-5-yl)thiophene-2-sulfonyl chloride; 5-(3-Methyl-1,2-oxazol-5-yl)thiophene-2-sulfonyl chloride; 3-Methyl-5-(5-(chlorosulfonyl)thiophen-2-yl)isoxazole; 5-(3-Methyl-5-isoxazolyl)thiophene-2-sulfonyl chloride
EINECS	Contact for details

Quality Control

Every batch of 5-(3-Methyl-5-Isoxazolyl)-2-Thiophenesulfonyl Chloride is manufactured and tested under strict quality management protocols to ensure consistency and purity suitable for research and development applications. Our products undergo rigorous quality testing, including chromatographic purity analysis and identity confirmation, to ensure compliance with industry standards. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory documentation 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, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
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.