Description

3-Chloro-6-Ethylbenzo[B]Thiophene-2-Carbonyl Chloride is a high-value, multi-functional chemical intermediate characterized by its reactive carbonyl chloride and halogenated benzothiophene structure. This compound matters for its critical role as a versatile building block in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for creating novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and oncology.
• Agrochemical Active Ingredient Synthesis: Used in the development of next-generation herbicides, fungicides, and insecticides, leveraging the benzothiophene scaffold for enhanced bioactivity.
• Material Science & Organic Electronics: Acts as a monomer or building block for constructing conjugated polymers and small molecules for use in organic light-emitting diodes (OLEDs) and organic photovoltaics (OPVs).
• Ligand & Catalyst Development: Employed in the preparation of specialized ligands for transition metal catalysis, facilitating challenging chemical transformations.
• Chemical Research & Development: A valuable tool for medicinal and process chemists exploring structure-activity relationships (SAR) and scaling up synthetic routes.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for the production of bespoke compounds for client projects.

Basic Information

Product Name	3-Chloro-6-Ethylbenzo[B]Thiophene-2-Carbonyl Chloride
CAS No.	901555-86-0
Molecular Formula	C11H8Cl2OS
Molecular Weight	259.15 g/mol
Synonyms	3-Chloro-6-ethylbenzo[b]thiophene-2-carbonyl chloride; 3-Chloro-6-ethyl-1-benzothiophene-2-carbonyl chloride; 2-Benzothiophenecarbonyl chloride, 3-chloro-6-ethyl-; 901555-86-0; 3-Chloro-6-ethylbenzo[b]thiophene-2-carboxylic acid chloride; 6-Ethyl-3-chlorobenzo[b]thiophene-2-carbonyl chloride
EINECS	Contact for details

Quality Control

Every batch of 3-Chloro-6-Ethylbenzo[B]Thiophene-2-Carbonyl Chloride is manufactured and tested under a strict quality management system. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request, detailing key parameters such as purity, identity, and impurity profile to support your regulatory and R&D needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place 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
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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