Description

5-Methyl-8-Quinoxalinesulfonyl Chloride is a specialized sulfonyl chloride derivative of the quinoxaline heterocycle, serving as a critical building block in advanced organic synthesis. Its primary value lies in its high reactivity as a sulfonylation reagent, enabling the efficient introduction of the 5-methyl-8-quinoxaline sulfonyl moiety into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of potential drug candidates, especially kinase inhibitors and other biologically active molecules targeting specific enzymes.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides, leveraging the quinoxaline scaffold for bioactivity.
• Material Science Research: Acts as a monomer or functionalization agent in the creation of advanced polymers and organic electronic materials.
• Chemical Biology Probes: Employed in the design and synthesis of activity-based probes (ABPs) and affinity labels for studying protein function and interactions.
• Dye and Pigment Intermediate: Serves as a building block for synthesizing complex heterocyclic dyes and functional colorants.
• Custom Synthesis & Contract Manufacturing: A vital reagent for custom chemical synthesis services catering to R&D and pilot-scale production.

Basic Information

Product Name	5-Methyl-8-Quinoxalinesulfonyl Chloride
CAS No.	71322-92-4
Molecular Formula	C9H7ClN2O2S
Molecular Weight	242.68 g/mol
Synonyms	8-Quinoxalinesulfonyl chloride, 5-methyl-; 5-Methylquinoxaline-8-sulfonyl chloride; 5-Methyl-8-quinoxalinesulphonyl chloride; Quinoxaline-8-sulfonyl chloride, 5-methyl-; 71322-92-4; 5-Methylquinoxalin-8-ylsulfonyl chloride
EINECS	Contact for details

Quality Control

Every batch of 5-Methyl-8-Quinoxalinesulfonyl Chloride is manufactured and tested under strict quality management protocols to ensure consistency and reliability. We provide comprehensive analytical data, including HPLC purity, identity confirmation (IR, NMR), and impurity profiling. A Certificate of Analysis (COA) detailing all specifications and test results is supplied with each shipment to support your quality assurance and regulatory 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 (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to prevent decomposition. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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