Description

(4S)-4-Methyl-2-Pyrrolidinone is a high-purity, chiral derivative of 2-pyrrolidinone, a versatile polar aprotic solvent and building block. This specific enantiomer is valued for its role in asymmetric synthesis and as a key intermediate in the production of advanced pharmaceuticals and fine chemicals. It is essential for research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop or produce optically active compounds.

Application

• Pharmaceutical Intermediate: A critical chiral building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting the central nervous system.
• Asymmetric Synthesis: Used as a chiral auxiliary or solvent in stereoselective reactions to produce enantiomerically pure compounds.
• Agrochemical Synthesis: Serves as a precursor in the manufacturing of chiral pesticides and herbicides for enhanced efficacy.
• Specialty Polymer Production: Acts as a monomer or solvent in the synthesis of high-performance polymers like polyamides and resins.
• Electrolyte Additive: Employed in advanced lithium-ion battery formulations to improve electrolyte stability and performance.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic methodologies and chiral catalysis.

Basic Information

Product Name	(4S)-4-Methyl-2-Pyrrolidinone
CAS No.	31551-66-3
Molecular Formula	C5H9NO
Molecular Weight	99.13 g/mol
Synonyms	(S)-(-)-4-Methyl-2-pyrrolidinone; (S)-4-Methyl-2-pyrrolidone; (4S)-4-Methylpyrrolidin-2-one; L-4-Methyl-2-pyrrolidinone; (S)-4-Methylbutyrolactam; (S)-4-Methyl-2-oxopyrrolidine; (-)-4-Methyl-2-pyrrolidinone
EINECS	Contact for details

Quality Control

Our (4S)-4-Methyl-2-Pyrrolidinone is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC, to ensure it meets the high standards required for pharmaceutical and fine chemical applications. Certificates of Analysis (COA) with detailed specifications for identity, purity, and enantiomeric excess are provided with every shipment.

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). Due to its hygroscopic nature, containers should be kept tightly sealed after opening to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Enantiomeric Excess (Chiral HPLC)	≥ 99.0%
Water Content (KF)	≤ 0.5%
Specific Rotation	Contact for details

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