Description

2-Chloro-5,6-Dihydro-4H-Cyclopenta[B]Thiophen-4-One is a high-value, heterocyclic organic building block featuring a fused cyclopentane-thiophene core structure. This compound is critical for synthetic chemists as it serves as a versatile intermediate in the development of complex molecules, particularly in pharmaceutical and agrochemical research. Its unique scaffold is essential for creating novel active ingredients, making it a key material for R&D departments and fine chemical manufacturers focused on innovation.

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 and herbicides, leveraging its heterocyclic structure for bioactivity.
• Material Science Research: Serves as a building block for organic electronic materials, such as semiconductors and conductive polymers, due to its thiophene moiety.
• Chemical Research & Development: Employed as a versatile scaffold in medicinal chemistry for structure-activity relationship (SAR) studies and library synthesis.
• Fine Chemical Production: An important intermediate in custom synthesis and contract manufacturing for specialized chemical products.

Basic Information

Product Name	2-Chloro-5,6-Dihydro-4H-Cyclopenta[B]Thiophen-4-One
CAS No.	69300-48-7
Molecular Formula	C7H5ClOS
Molecular Weight	172.63 g/mol
Synonyms	2-Chloro-4,5,6,7-tetrahydro-4-oxocyclopenta[b]thiophene; 2-Chloro-4,5,6,7-tetrahydrocyclopenta[b]thiophen-4-one; 2-Chloro-4-oxo-4,5,6,7-tetrahydrocyclopenta[b]thiophene; 2-Chlorocyclopentathiophen-4-one; 69300-48-7; Cyclopenta[b]thiophen-4-one, 2-chloro-5,6-dihydro-4H-
EINECS	Contact for details

Quality Control

Our 2-Chloro-5,6-Dihydro-4H-Cyclopenta[B]Thiophen-4-One is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques including HPLC, GC, and NMR for comprehensive characterization and impurity profiling. Certificates of Analysis (COA) documenting identity, purity, and related substances are provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

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%
Heavy Metals	≤ 20 ppm

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