Description

Cyclopentanone, 3-Methyl-3-[(Phenylthio)Methyl]-, (3S)- (9Ci) is a high-value, chiral organic building block featuring a cyclopentanone core substituted with a methyl and a phenylthiomethyl group at the 3-position. This compound is critical for its role as a key intermediate in the synthesis of complex, biologically active molecules, particularly in pharmaceutical research and development. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for constructing novel molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a crucial chiral synthon in the multi-step synthesis of active pharmaceutical ingredients (APIs), especially for candidates targeting central nervous system (CNS) disorders or other therapeutic areas.
• Asymmetric Synthesis: Used as a starting material or advanced intermediate in stereoselective chemical reactions to introduce specific three-dimensional complexity into target molecules.
• Medicinal Chemistry Research: Employed in drug discovery programs for the design and synthesis of novel compound libraries to explore new chemical space and structure-activity relationships (SAR).
• Agrochemical Development: Functions as a building block in the research and production of advanced pesticides or herbicides where specific stereochemistry is required for biological activity.
• Fine Chemical Synthesis: Utilized in the custom synthesis of specialty chemicals, flavors, fragrances, and advanced materials that require a defined stereochemical configuration.
• Academic & Institutional Research: Applied in university and institutional laboratories for methodological development in organic synthesis and catalysis studies.

Basic Information

Product Name	Cyclopentanone, 3-Methyl-3-[(Phenylthio)Methyl]-, (3S)- (9Ci)
CAS No.	824940-64-9
Molecular Formula	C14H18OS
Molecular Weight	234.36 g/mol
Synonyms	(3S)-3-Methyl-3-[(phenylthio)methyl]cyclopentanone; (S)-3-Methyl-3-(phenylthiomethyl)cyclopentanone; 3-Methyl-3-(phenylthiomethyl)cyclopentanone, (3S)-; 824940-64-9; (S)-3-Methyl-3-(phenylsulfanylmethyl)cyclopentan-1-one
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch of Cyclopentanone, 3-Methyl-3-[(Phenylthio)Methyl]-, (3S)- (9Ci) is supported by a comprehensive Certificate of Analysis (COA) detailing purity, chiral purity (enantiomeric excess), and impurity profiles. We adhere to strict in-process controls and final release specifications typical for advanced pharmaceutical intermediates. Certificates of Analysis (COA) are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place. For long-term storage, it is recommended to keep the material under an inert atmosphere (e.g., nitrogen or argon) at temperatures between 2°C and 8°C to maintain stability and chiral integrity. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%

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