Description

3-Ethynyl-3-Ethyloxetane is a specialized oxetane derivative featuring both an oxetane ring and an ethynyl group, making it a valuable monomer and building block in advanced polymer synthesis. This unique bifunctional structure allows it to impart high cross-linking density, thermal stability, and tailored mechanical properties to resulting materials. It is primarily sought after by R&D chemists and material scientists in the photoresist, adhesive, coating, and high-performance polymer industries for developing next-generation products.

Application

• Photoresist & Photopolymer Formulations: Serves as a key monomer for creating highly sensitive, low-shrinkage matrix resins used in semiconductor and display manufacturing.
• Cross-linking Agent for Coatings & Adhesives: Enhances hardness, chemical resistance, and adhesion properties in UV-curable and thermally cured systems.
• High-Performance Polymer Synthesis: Used as a comonomer to synthesize polyoxetanes and other specialty polymers with enhanced thermal and mechanical characteristics.
• Pharmaceutical & Agrochemical Intermediates: Acts as a versatile synthetic building block for constructing complex molecular architectures.
• Dental & Biomedical Materials: Incorporated into resin composites to improve strength and durability.
• Electrolyte Additives for Batteries: Investigated for use in solid-state or advanced liquid electrolytes to improve stability and performance.

Basic Information

Product Name	3-Ethynyl-3-Ethyloxetane
CAS No.	1416323-31-3
Molecular Formula	C7H10O
Molecular Weight	110.15 g/mol
Synonyms	3-Ethyl-3-ethynyloxetane; 3-Ethynyl-3-ethyl-1-oxacyclobutane; Oxetane, 3-ethynyl-3-ethyl-; EE0; 3-Ethyl-3-ethynyl-oxetane; 3-Ethyl-3-oxetanylacetylene
EINECS	Contact for details

Quality Control

Our 3-Ethynyl-3-Ethyloxetane is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistent performance. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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). This material is moisture-sensitive (hygroscopic) and should be handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	0.95 - 0.98

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