Description

1,3-Dimethyl-2-Imidazolidinone (CAS NO 80-73-9) is a high-performance, polar aprotic solvent with exceptional thermal and chemical stability. Its unique properties make it a critical processing aid and reaction medium for demanding chemical syntheses and advanced material formulations. This versatile compound is essential for manufacturers in the pharmaceutical, agrochemical, polymer, and electronics industries seeking to enhance reaction yields and product purity.

Application

• Pharmaceutical Synthesis: A preferred solvent for peptide coupling, polymerization, and as a reaction medium for APIs requiring high-temperature stability.
• Agrochemical Formulation: Used as a co-solvent and stabilizer in the production of pesticides and herbicides.
• Polymer & Fiber Industry: Serves as a spinning solvent for high-performance aramid fibers (e.g., Kevlar®) and as a processing agent for polyimides and other engineering plastics.
• Electronics & Specialty Chemicals: Employed in the manufacture of lithium-ion battery electrolytes, photoresists, and liquid crystals.
• Chemical Intermediates: Acts as a reactant or catalyst in various organic synthesis processes.
• Gas Purification: Utilized as an absorbent for acid gases like CO2 and H2S in industrial gas treatment processes.

Basic Information

Product Name	1,3-Dimethyl-2-Imidazolidinone
CAS No.	80-73-9
Molecular Formula	C5H10N2O
Molecular Weight	114.15 g/mol
Synonyms	DMI; N,N'-Dimethylethyleneurea; 1,3-Dimethylimidazolidin-2-one; 1,3-Dimethyl-2-imidazolidone; N,N'-Dimethyl-2-imidazolidinone; Dimethyl Ethylene Urea; DMEU; Solvent DMI
EINECS	201-302-9

Quality Control

Our 1,3-Dimethyl-2-Imidazolidinone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets the highest standards of purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, water content, and impurity profiles.

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). Keep away from strong acids, strong bases, and oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Water Content (KF)	≤ 0.1%
Color (APHA)	≤ 50
Refractive Index (20°C)	1.468 - 1.472
Density (20°C)	1.055 - 1.065 g/mL

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