Description

Benzo[B]Thiophen-5-Yl-Methanesulfonyl Chloride is a high-purity, reactive sulfonyl chloride derivative used as a critical building block in advanced organic synthesis. This compound is valued for its role in introducing the methanesulfonyl (mesyl) group into complex molecular architectures, enabling the development of novel chemical entities. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical industries for the synthesis of active pharmaceutical ingredients (APIs) and specialized intermediates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides with enhanced efficacy.
• Material Science: Serves as a functionalization agent in the creation of specialty polymers and advanced organic materials.
• Chemical Biology: Employed as a probe or linker molecule in bioconjugation and proteomics research.
• Organic Synthesis: A versatile reagent for sulfonylation reactions, facilitating the construction of complex heterocyclic compounds.

Basic Information

Item	Detail
Product Name	Benzo[B]Thiophen-5-Yl-Methanesulfonyl Chloride
CAS No.	348080-83-1
Molecular Formula	C10H7ClO2S2
Molecular Weight	258.74 g/mol
Synonyms	5-(Chlorosulfonylmethyl)benzo[b]thiophene; 1-(Benzo[b]thiophen-5-yl)methanesulfonyl chloride; 5-(Methanesulfonyl chloride)benzo[b]thiophene; Benzo[b]thiophene-5-ylmethanesulfonyl chloride; 348080-83-1; BTSM-Cl
EINECS	Contact for details

Quality Control

Our production of Benzo[B]Thiophen-5-Yl-Methanesulfonyl Chloride adheres to stringent quality management protocols. Every batch is subjected to comprehensive analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific customer or regulatory 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). This product is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	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.