Description

5-Ethyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carbonyl chloride is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. Its value lies in its role as a versatile building block for constructing complex heterocyclic scaffolds, enabling the development of novel compounds with targeted properties. This product is critically needed by research and development teams in the pharmaceutical, agrochemical, and material science industries for creating new active ingredients and functional molecules.

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 pesticides, herbicides, and fungicides, leveraging its benzothiophene core structure.
• Material Science Research: Serves as a building block for creating advanced organic materials, such as organic semiconductors or liquid crystals.
• Chemical Research & Development: Employed in academic and industrial labs for method development and the exploration of new chemical entities and reaction pathways.
• Custom Synthesis: A critical starting material for contract research and manufacturing organizations (CROs/CMOs) producing bespoke compounds for clients.

Basic Information

Product Name	5-Ethyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carbonyl chloride
CAS No.	869947-17-1
Molecular Formula	C12H15ClOS
Molecular Weight	242.76 g/mol
Synonyms	5-Ethyl-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carbonyl chloride; 2-Carbonyl chloride-5-ethyl-4,5,6,7-tetrahydro-1-benzothiophene; 5-Ethyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carboxylic acid chloride; 869947-17-1; 5-Ethyl-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid chloride
EINECS	Contact for details

Quality Control

Our production of 5-Ethyl-4,5,6,7-tetrahydro-1-benzothiophene-2-carbonyl chloride adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability for your critical syntheses. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to verify identity and purity. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory documentation 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). Due to its hygroscopic and reactive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation from moisture. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.