Description

Benzo[B]Thiophene-7-Carbonyl Chloride, 2,3-Dihydro-3-Oxo- (9Ci) is a high-value, reactive chemical intermediate primarily used in advanced organic synthesis. This compound is critical for constructing complex heterocyclic scaffolds, offering a versatile handle for amide bond formation and further functionalization. It is essential for research and development chemists in the pharmaceutical and agrochemical industries, particularly for the synthesis of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, especially those containing benzothiophene or related heterocyclic cores.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides requiring specific heterocyclic structures.
• Material Science Research: Serves as a precursor for developing organic electronic materials, dyes, and photoactive compounds.
• Chemical Biology Probes: Utilized in the creation of specialized molecular probes and inhibitors for biochemical research.
• Custom Synthesis & Contract Manufacturing: A critical reagent for fine chemical manufacturers offering bespoke synthesis services to clients.

Basic Information

Item	Details
Product Name	Benzo[B]Thiophene-7-Carbonyl Chloride, 2,3-Dihydro-3-Oxo- (9Ci)
CAS No.	141399-96-4
Molecular Formula	C9H5ClO2S
Molecular Weight	212.65 g/mol
Synonyms	2,3-Dihydro-3-oxobenzo[b]thiophene-7-carbonyl chloride; 3-Oxo-2,3-dihydro-1-benzothiophene-7-carbonyl chloride; 7-Chlorocarbonyl-2,3-dihydro-3-oxobenzo[b]thiophene; 2,3-Dihydro-3-oxo-1-benzothiophene-7-carbonyl chloride; 3-Oxo-2,3-dihydrobenzo[b]thiophene-7-carboxylic acid chloride
EINECS	Contact for details

Quality Control

Our production of Benzo[B]Thiophene-7-Carbonyl Chloride, 2,3-Dihydro-3-Oxo- (9Ci) adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming the product meets your specified requirements and industry standards for high-purity intermediates.

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 (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
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.