Description

(S)-4-Ethynyloxazolidin-2-One CAS NO 1398507-73-7 is a high-purity, chiral oxazolidinone derivative featuring a reactive ethynyl group. This compound serves as a versatile and critical chiral building block in modern asymmetric synthesis, enabling the construction of complex molecules with high stereochemical fidelity. It is primarily utilized by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the development of novel active ingredients.

Application

• Pharmaceutical Intermediate: A key chiral synthon for the synthesis of novel drug candidates, particularly in antibiotic and antiviral research.
• Asymmetric Catalysis: Used as a chiral auxiliary or ligand precursor to induce stereoselectivity in catalytic reactions.
• Agrochemical Synthesis: Employed in the research and development of advanced, stereochemically-defined pesticides and herbicides.
• Material Science Research: Acts as a monomer or functionalization agent in the development of specialized polymers.
• Academic & R&D Laboratories: A valuable reagent for methodological studies in organic and medicinal chemistry.
• Process Chemistry: Investigated for scalable routes to chiral targets in pilot plant and kilo-lab settings.

Basic Information

Product Name	(S)-4-Ethynyloxazolidin-2-One
CAS No.	1398507-73-7
Molecular Formula	C5H5NO2
Molecular Weight	111.10 g/mol
Synonyms	(S)-4-Ethynyl-2-oxazolidinone; (4S)-4-Ethynyl-1,3-oxazolidin-2-one; (S)-(-)-4-Ethynyl-2-oxazolidinone; (S)-4-Ethynyloxazolidin-2-one; Oxazolidin-2-one, 4-ethynyl-, (4S)-; Chiral Ethynyl Oxazolidinone; (S)-configuration Oxazolidinone Building Block
EINECS	Contact for details

Quality Control

Every batch of (S)-4-Ethynyloxazolidin-2-One is produced under strict quality management protocols. We employ advanced analytical techniques, including HPLC, GC, and chiral analysis, to ensure high enantiomeric purity and chemical identity. A comprehensive Certificate of Analysis (COA) detailing purity, chiral purity, and impurity profiles is provided with each shipment to guarantee reliable and consistent performance in your critical applications.

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 nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which may affect stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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