Description

Cyclopentanone O,S-Ethylenethioacetal CAS NO 176-38-5 is a specialized organosulfur compound and a protected form of cyclopentanone, featuring a unique O,S-ethylene acetal group. This chemical is a valuable synthetic intermediate and building block in advanced organic synthesis, offering chemists a versatile handle for selective transformations. It is primarily utilized by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and fine chemical sectors for the development of novel active ingredients and complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of complex drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and development of novel pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Acts as a precursor for fragrances, flavors, and other high-value specialty chemicals.
• Academic & Industrial Research: Employed in methodological studies and as a model substrate for developing new synthetic methodologies, particularly in sulfur chemistry.
• Material Science: Investigated as a monomer or precursor for novel polymers and functional materials with specific properties.

Basic Information

Product Name	Cyclopentanone O,S-Ethylenethioacetal
CAS No.	176-38-5
Molecular Formula	C7H12OS
Molecular Weight	144.23 g/mol
Synonyms	Cyclopentanone Ethylene Monothioacetal; 1,4-Oxathiane, 2-(1-Cyclopenten-1-yl)-; 2-(1-Cyclopenten-1-yl)-1,4-oxathiane; Cyclopentanone Ethylene Thioketal; O,S-Ethylene Thioketal of Cyclopentanone; Cyclopentanone O,S-Ethylene Acetal; 2-Cyclopenten-1-yl-1,4-oxathiane
EINECS	205-861-5

Quality Control

Every batch of Cyclopentanone O,S-Ethylenethioacetal is produced and tested under strict quality management protocols to ensure consistency and purity for research and industrial use. Our products undergo rigorous quality testing, including chromatographic purity analysis and identity confirmation, to meet the high standards required for synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment and is available upon request.

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 strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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