Description

6H-Cyclopenta[B]Thiophen-6-One,4,5-Dihydro-5-Hydroxy-5-Methyl-,o-Methyloxime,(5R)-(9Ci) is a high-purity, stereochemically defined advanced pharmaceutical intermediate. This compound matters for its role as a critical building block in the synthesis of complex active pharmaceutical ingredients (APIs), particularly those targeting specific biological pathways. Industrial and research chemists in the pharmaceutical and agrochemical sectors need this material for its precise structural configuration, which is essential for ensuring the efficacy and safety of the final drug or agrochemical product.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of novel therapeutic agents.
• Agrochemical Synthesis: Used in the production of advanced crop protection chemicals with specific modes of action.
• Organic Synthesis Research: Serves as a versatile building block for constructing complex heterocyclic compounds in academic and industrial R&D.
• Process Chemistry: Employed in scale-up and optimization studies for the commercial manufacturing of APIs.
• Reference Standard: Can be utilized as an analytical standard for quality control and method development in pharmaceutical analysis.

Basic Information

Product Name	6H-Cyclopenta[B]Thiophen-6-One,4,5-Dihydro-5-Hydroxy-5-Methyl-,o-Methyloxime,(5R)-(9Ci)
CAS No.	827609-20-1
Molecular Formula	C9H11NO2S
Molecular Weight	197.26 g/mol
Synonyms	(5R)-4,5-Dihydro-5-hydroxy-5-methyl-6H-cyclopenta[b]thiophen-6-one O-methyloxime; (5R)-5-Hydroxy-5-methyl-4,5-dihydro-6H-cyclopenta[b]thiophen-6-one O-methyloxime; 6H-Cyclopenta[b]thiophen-6-one, 4,5-dihydro-5-hydroxy-5-methyl-, O-methyloxime, (5R)-; (5R)-5-Methyl-5-hydroxy-4,5-dihydro-6H-cyclopenta[b]thiophen-6-one O-methyloxime; 827609-20-1; (R)-enantiomer of the specified oxime derivative.
EINECS	Contact for details

Quality Control

Our production of 6H-Cyclopenta[B]Thiophen-6-One,4,5-Dihydro-5-Hydroxy-5-Methyl-,o-Methyloxime,(5R)-(9Ci) adheres to stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot is characterized and tested using advanced analytical techniques including HPLC, GC, and NMR. Certificates of Analysis (COA) detailing identity, purity, chiral purity, and impurity profiles are provided with every shipment to support your regulatory and quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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