Description

5-Methyl-2-Pyrrolidone is a high-purity, versatile organic solvent and chemical intermediate belonging to the pyrrolidone family. Its excellent solvency power, high boiling point, and thermal stability make it a valuable alternative to N-Methyl-2-pyrrolidone (NMP) in applications requiring specific performance or regulatory considerations. This compound is essential for industries such as pharmaceuticals, agrochemicals, and specialty polymers, where it serves as a reaction medium, crystallization solvent, or formulation component.

Application

• Pharmaceutical Synthesis: Used as a polar aprotic solvent in API (Active Pharmaceutical Ingredient) manufacturing, particularly for reactions involving strong bases or as a crystallization medium.
• Agrochemical Formulations: Acts as a key solvent and co-solvent in the production of pesticides, herbicides, and fungicides, enhancing the solubility and stability of active ingredients.
• Polymer & Resin Processing: Employed as a processing aid and solvent for engineering plastics, polyimide precursors, and specialty coatings due to its high boiling point and solvency.
• Electronics & Photoresists: Serves as a stripping and cleaning agent in semiconductor manufacturing and as a component in photoresist formulations.
• Petrochemical & Gas Treatment: Utilized as a selective solvent in gas purification processes, such as the removal of acidic gases like CO2 and H2S from natural gas streams.
• Chemical Intermediate: Functions as a building block in organic synthesis for the production of other pyrrolidone derivatives and fine chemicals.

Basic Information

Product Name	5-Methyl-2-Pyrrolidone
CAS No.	108-27-0
Molecular Formula	C5H9NO
Molecular Weight	99.13 g/mol
Synonyms	5-Methylpyrrolidin-2-one; N-Methyl-5-methyl-2-pyrrolidone; 5-Methyl-2-pyrrolidinone; 5-Methyl-2-oxopyrrolidine; 2-Pyrrolidone, 5-methyl-; 5-Methylbutyrolactam; 1-Methyl-5-methyl-2-pyrrolidone
EINECS	203-562-9

Quality Control

Our 5-Methyl-2-Pyrrolidone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including assay, impurity profile, and physical property determination, to ensure it meets the high standards required for industrial and pharmaceutical applications. Certificates of Analysis (COA) documenting purity, identity, and conformance to agreed specifications are available for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The container should be kept tightly sealed when not in use to minimize moisture absorption and prevent contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Water Content (KF)	≤ 0.1%
Refractive Index (20°C)	1.468 - 1.472
Density (20°C)	1.030 - 1.050 g/mL
Boiling Point	~ 245°C

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