Description

(2-Formylphenyl)Methanesulfonyl Chloride is a versatile and highly reactive organic intermediate, primarily used as a key building block in advanced chemical synthesis. Its value lies in the unique combination of a formyl group and a reactive sulfonyl chloride moiety on an aromatic ring, enabling the construction of complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require a reliable precursor for sulfonamide and sulfonate ester formation.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs containing sulfonamide functional groups.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides where the sulfonyl moiety imparts specific biological activity.
• Material Science Research: Serves as a monomer or cross-linking agent in the development of specialty polymers and functional materials.
• Chemical Biology & Proteomics: Employed as a reactive handle for bioconjugation and the development of chemical probes targeting specific proteins or enzymes.
• Dye & Pigment Manufacturing: Acts as an intermediate in the synthesis of complex organic dyes and colorants.
• Custom Synthesis & Contract Manufacturing: A valuable starting material for custom synthesis projects requiring bespoke sulfonylated aromatic compounds.

Basic Information

Product Name	(2-Formylphenyl)Methanesulfonyl Chloride
CAS No.	31910-71-1
Molecular Formula	C8H7ClO3S
Molecular Weight	218.66 g/mol
Synonyms	2-Formylbenzenesulfonyl Chloride; o-Formylbenzenesulfonyl Chloride; 2-Carboxybenzenesulfonyl Chloride (precursor-related); Benzaldehyde-2-sulfonyl chloride; (2-Carboxyphenyl)methanesulfonyl chloride (related); Salicylaldehyde-2-sulfonyl chloride (related)
EINECS	Contact for details

Quality Control

Our (2-Formylphenyl)Methanesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the stringent requirements of our global clientele in research and production. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee traceability and compliance with your internal specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. Due to its hygroscopic (moisture-sensitive) nature, the container should be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Melting Point	Contact for details

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