Description

2-Ethyl-2-Methyl-4-Butyrolactone is a versatile lactone derivative, a key intermediate in fine chemical synthesis. Its unique structure provides valuable reactivity for constructing complex molecules, offering significant advantages in process efficiency and product performance. This compound is essential for R&D chemists and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop novel active ingredients and high-performance materials.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of novel drug candidates.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Polymer & Resin Modifier: Serves as a monomer or cross-linking agent to enhance the properties of specialty polymers, coatings, and adhesives.
• Flavor & Fragrance Ingredient: Acts as a precursor for certain lactone-based aroma chemicals used in creating complex scent and flavor profiles.
• Organic Synthesis Reagent: A valuable reagent in academic and industrial research for ring-opening reactions, esterifications, and other transformations.
• Electrolyte Additive: Investigated for use in advanced battery formulations to improve electrolyte stability and performance.

Basic Information

Product Name	2-Ethyl-2-Methyl-4-Butyrolactone
CAS No.	31004-76-9
Molecular Formula	C7H12O2
Molecular Weight	128.17 g/mol
Synonyms	2-Ethyl-2-methyl-γ-butyrolactone; 2-Ethyl-2-methylbutyrolactone; 2-Ethyl-2-methyl-dihydro-2(3H)-furanone; 4-Butyrolactone, 2-ethyl-2-methyl-; 2-Methyl-2-ethyl-γ-butyrolactone; α-Ethyl-α-methyl-γ-butyrolactone; 3-Methyl-3-ethyloxolan-2-one
EINECS	Contact for details

Quality Control

Our 2-Ethyl-2-Methyl-4-Butyrolactone is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. Certificates of Analysis (COA) detailing specific batch results are 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 area at room temperature (15-25°C). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.430 - 1.440
Density (20°C)	0.980 - 1.020 g/mL

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