Description

Cyclopentanecarbonyl Chloride, 1-(3-Thienyl)- (9Ci) is a specialized organosulfur building block that combines a reactive acid chloride moiety with a thiophene heterocycle. This molecular architecture makes it a valuable intermediate for synthesizing complex molecules in advanced research and development. It is primarily sought after by pharmaceutical and agrochemical R&D teams for constructing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in central nervous system (CNS) and anti-infective therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new generation pesticides and herbicides, leveraging the thiophene ring's bioactivity.
• Material Science Research: Serves as a precursor for functional polymers and organic electronic materials due to the conjugated thiophene system.
• Ligand and Catalyst Development: Employed in the creation of specialized ligands for asymmetric catalysis and metal-organic frameworks (MOFs).
• Chemical Biology Probes: Utilized to develop molecular probes and tags for studying biological processes and protein interactions.
• Custom Synthesis & Contract Manufacturing: A critical raw material for fine chemical manufacturers offering bespoke synthesis services to global clients.

Basic Information

Item	Detail
Product Name	Cyclopentanecarbonyl Chloride, 1-(3-Thienyl)- (9Ci)
CAS No.	73812-19-8
Molecular Formula	C10H11ClOS
Molecular Weight	214.71 g/mol
Synonyms	1-(Thiophen-3-yl)cyclopentanecarbonyl chloride; 3-(1-Chlorocarbonylcyclopentyl)thiophene; 1-(3-Thienyl)cyclopentanecarbonyl chloride; Cyclopentanecarboxylic acid, 1-(3-thienyl)-, chloride; 1-(Thiophene-3-yl)cyclopentane-1-carbonyl chloride
EINECS	Contact for details

Quality Control

Every batch of Cyclopentanecarbonyl Chloride, 1-(3-Thienyl)- (9Ci) is produced and tested under a strict quality management system. We ensure high purity and consistency through advanced analytical techniques including HPLC, GC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
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.