Description

(-)-Osu CAS NO 146798-66-5 is a high-purity chiral compound, specifically the (-)-enantiomer of Osu, which is a critical intermediate in advanced organic synthesis. This compound matters for its role in facilitating stereoselective reactions, enabling the production of pharmaceuticals and fine chemicals with precise three-dimensional structures. It is primarily needed by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing active ingredients and novel materials.

Application

• Pharmaceutical Intermediate: Key chiral building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in antiviral and central nervous system (CNS) drug research.
• Asymmetric Catalysis: Used as a ligand or precursor in catalytic systems to induce chirality in synthetic reactions.
• Agrochemical Synthesis: Intermediate in the production of enantiomerically pure pesticides and herbicides for enhanced efficacy and environmental safety.
• Academic & Industrial R&D: Serves as a standard or reagent in method development and stereochemistry studies within organic chemistry laboratories.
• Fine Chemical Production: Employed in the manufacture of specialty chemicals, flavors, and fragrances requiring specific stereochemical configurations.
• Material Science Research: Potential monomer or precursor for developing chiral polymers and advanced functional materials.

Basic Information

Product Name	(-)-Osu
CAS No.	146798-66-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	(-)-Osu; (S)-Osu; Osu (-)-form; L-Osu; (S)-2-Oxazolidinone derivative; Chiral Osu; Enantiomerically pure Osu; (5S)-5-(Hydroxymethyl)-1,3-oxazolidin-2-one (tentative based on common structure)
EINECS	Contact for details

Quality Control

Our (-)-Osu is produced under strict quality management systems to ensure batch-to-batch consistency and high enantiomeric purity. Each lot undergoes comprehensive analytical testing, including chiral HPLC for enantiomeric excess (ee) determination, NMR for structural confirmation, and standard purity assays. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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