Description

4H-Cyclopenta[B]Thiophen-4-One,5,6-Dihydro-,Oxime(9Ci) CAS NO 343929-41-9 is a specialized heterocyclic oxime compound that serves as a critical synthetic intermediate in advanced organic chemistry. Its unique fused-ring structure containing sulfur and nitrogen makes it a valuable building block for constructing complex molecular architectures. This high-purity intermediate is primarily sought by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs) and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing specific receptor-binding profiles.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or insecticides, leveraging its heterocyclic core for bioactivity.
• Material Science: Serves as a monomer or functionalizing agent in the creation of advanced polymers, liquid crystals, or organic semiconductors.
• Chemical Biology Probe Synthesis: Employed to build molecular probes for studying enzyme mechanisms or protein-ligand interactions due to its oxime functionality.
• Academic & Industrial R&D: A versatile scaffold for methodological chemistry research, including studies on cycloaddition reactions or heterocycle functionalization.

Basic Information

Product Name	4H-Cyclopenta[B]Thiophen-4-One,5,6-Dihydro-,Oxime(9Ci)
CAS No.	343929-41-9
Molecular Formula	C7H7NOS
Molecular Weight	153.20 g/mol
Synonyms	5,6-Dihydro-4H-cyclopenta[b]thiophen-4-one oxime; 4H-Cyclopenta[b]thiophen-4-one, 5,6-dihydro-, oxime; Cyclopenta[b]thiophene-4(5H)-one, oxime; Dihydrocyclopentathiophenone oxime; 343929-41-9; 4H-Cyclopenta[B]Thiophen-4-One,5,6-Dihydro-,Oxime; 5,6-Dihydro-4H-cyclopenta[b]thiophene-4-one oxime
EINECS	Contact for details

Quality Control

Our production of 4H-Cyclopenta[B]Thiophen-4-One,5,6-Dihydro-,Oxime(9Ci) adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity for research and development applications. All materials are characterized using advanced analytical techniques including NMR, HPLC, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your regulatory and quality 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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. For long-term storage, consider using desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

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