Description

Benzo[B]Thiophene-2-Carbonyl Chloride, 4,5,6,7-Tetrahydro- (9Ci) is a high-purity, reactive chemical intermediate featuring a tetrahydrobenzothiophene core with an acid chloride functional group. This compound is critical for the synthesis of complex molecules, offering a versatile building block for introducing the benzothiophene moiety into target structures under controlled conditions. It is primarily sought after by research chemists and process development teams in the pharmaceutical and agrochemical industries for the development of new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of novel drug candidates, particularly for central nervous system (CNS) and oncology targets.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides that require the benzothiophene scaffold for biological activity.
• Material Science Research: Serves as a precursor for organic electronic materials, such as novel semiconductors or charge-transport materials.
• Ligand and Catalyst Development: Employed in the synthesis of specialized ligands for catalysis and metal-organic frameworks (MOFs).
• Custom Synthesis and Contract Manufacturing: A vital starting material for custom synthesis projects and scale-up processes in fine chemical production.

Basic Information

Product Name	Benzo[B]Thiophene-2-Carbonyl Chloride, 4,5,6,7-Tetrahydro- (9Ci)
CAS No.	65361-26-4
Molecular Formula	C10H9ClOS
Molecular Weight	212.69 g/mol
Synonyms	4,5,6,7-Tetrahydrobenzo[b]thiophene-2-carbonyl chloride; 4,5,6,7-Tetrahydro-1-benzothiophene-2-carbonyl chloride; 2-Carboxy-4,5,6,7-tetrahydrobenzo[b]thiophene chloride; Tetrahydrobenzothiophene-2-carbonyl chloride; 65361-26-4; 4,5,6,7-Tetrahydrobenzo[b]thien-2-yl carbonyl chloride
EINECS	Contact for details

Quality Control

Our Benzo[B]Thiophene-2-Carbonyl Chloride, 4,5,6,7-Tetrahydro- (9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and consistent reactivity. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. 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%

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