Description

Ethanethioic Acid, S-[(1R,2R)-2-Hydroxycyclopentyl] Ester, Rel- (9Ci) is a chiral, high-purity organosulfur compound with a defined stereochemistry. This specialized intermediate is critical for the synthesis of complex molecules where precise spatial orientation is required for biological activity or material properties. It is primarily utilized by research institutions and manufacturers in the pharmaceutical and advanced materials sectors for developing novel active pharmaceutical ingredients (APIs) and functional chemical entities.

Application

• Pharmaceutical Intermediate: A key chiral building block for the synthesis of novel therapeutic agents, particularly in antiviral, anticancer, and neurological drug discovery programs.
• Asymmetric Synthesis: Used as a stereochemically defined reagent or precursor in catalytic and stoichiometric asymmetric synthesis to introduce sulfur-containing functional groups.
• Ligand and Catalyst Development: Serves as a precursor for creating chiral ligands and organocatalysts used in enantioselective transformations.
• Material Science Research: Investigated for incorporation into specialty polymers or organic electronic materials where the sulfur moiety and chiral center impart specific properties.
• Flavor & Fragrance Chemistry: Potential intermediate for the synthesis of complex, sulfur-containing aroma compounds.
• Agrochemical Research: Used in the development of new chiral active ingredients for crop protection with potentially improved efficacy and environmental profiles.

Basic Information

Product Name	Ethanethioic Acid, S-[(1R,2R)-2-Hydroxycyclopentyl] Ester, Rel- (9Ci)
CAS No.	3551-50-6
Molecular Formula	C7H12O2S
Molecular Weight	160.23 g/mol
Synonyms	rel-(1R,2R)-2-(Acetylthio)cyclopentanol; S-[(1R,2R)-2-Hydroxycyclopentyl] Thioacetate; (1R,2R)-2-(Acetylsulfanyl)cyclopentan-1-ol; Acetic Acid, Thio-, S-[(1R,2R)-2-Hydroxycyclopentyl] Ester; Chiral Cyclopentyl Thioacetate; (1R,2R)-2-Hydroxycyclopentyl Thioacetate; 2-(Acetylthio)cyclopentanol (rel-(1R,2R)-)
EINECS	Contact for details

Quality Control

Our production of this chiral intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high enantiomeric purity. Identity and purity are confirmed via advanced analytical techniques including Chiral HPLC, GC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing assay, enantiomeric excess (ee), and impurity profiles is provided with each shipment to support your R&D and cGMP manufacturing needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (15-25°C). This compound is moisture-sensitive; keep the container tightly sealed under an inert atmosphere if necessary to maintain stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Enantiomeric Excess (Chiral HPLC)	≥ 98.0% ee
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

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