Description

5-Chloro-3-Ethylbenzo[B]Thiophene is a high-purity, synthetically versatile heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its unique benzo[b]thiophene core, substituted with chloro and ethyl groups, makes it an indispensable intermediate for creating complex molecular architectures. This compound is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and material science sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides, herbicides, and fungicides due to its bioactive scaffold.
• Material Science Research: Serves as a monomer or building block for developing organic semiconductors, conductive polymers, and advanced organic electronic materials.
• Chemical Research & Development: Employed in academic and industrial R&D labs for method development, catalysis studies, and exploring new heterocyclic chemistry.
• Ligand and Catalyst Preparation: Utilized to synthesize specialized ligands for metal-organic frameworks (MOFs) or catalysts for asymmetric synthesis.
• Dye and Pigment Intermediate: Acts as a starting material for synthesizing specialized dyes and functional pigments.

Basic Information

Product Name	5-Chloro-3-Ethylbenzo[B]Thiophene
CAS No.	51828-46-7
Molecular Formula	C10H9ClS
Molecular Weight	196.69 g/mol
Synonyms	5-Chloro-3-ethyl-1-benzothiophene; 3-Ethyl-5-chlorobenzo[b]thiophene; Benzo[b]thiophene, 5-chloro-3-ethyl-; 5-Chloro-3-ethylbenzo[b]thiophene; 5-Chloro-3-ethyl-1-benzothiophene; 51828-46-7
EINECS	Contact for details

Quality Control

Our 5-Chloro-3-Ethylbenzo[B]Thiophene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical parameters. Our quality commitment ensures the material meets the stringent requirements for research and scale-up applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.