Description

Bis[(3-Ethyloxetan-3-Yl)Methyl] Benzene-1,4-Dicarboxylate is a high-purity, specialty chemical intermediate featuring two oxetane functional groups. This compound is valued for its role as a key building block in advanced polymer synthesis, enabling the creation of materials with enhanced performance characteristics. It is primarily sought by manufacturers in the coatings, adhesives, and advanced resin industries for developing products with superior chemical resistance, adhesion, and durability.

Application

• Crosslinking Agent for High-Performance Coatings: Imparts excellent hardness, chemical resistance, and weatherability to industrial and automotive coatings.
• Monomer for UV-Curable Resins: Serves as a reactive diluent and crosslinker in inks, adhesives, and protective films that cure rapidly under UV light.
• Epoxy Modifier: Enhances the thermal and mechanical properties of epoxy resin systems for composite and electronic applications.
• Synthesis of Specialty Polyesters and Polycarbonates: Used as a diester monomer to introduce oxetane side chains, modifying polymer flexibility and reactivity.
• Adhesive Formulations: Contributes to the development of high-strength, durable structural and laminating adhesives.
• Fiber-Reinforced Plastic (FRP) Composites: Improves the interfacial adhesion and overall performance of composite materials.

Basic Information

Product Name	Bis[(3-Ethyloxetan-3-Yl)Methyl] Benzene-1,4-Dicarboxylate
CAS No.	63943-89-5
Molecular Formula	C22H28O8
Molecular Weight	420.45 g/mol
Synonyms	1,4-Benzenedicarboxylic acid, bis[(3-ethyl-3-oxetanyl)methyl] ester; Bis(3-ethyl-3-oxetanemethyl) terephthalate; 3-Ethyl-3-[(4-[[(3-ethyl-3-oxetanyl)methoxy]carbonyl]benzoyl]oxy]methyl]oxetane; Oxetane crosslinker; Terephthalic acid bis(3-ethyl-3-oxetanemethyl) ester; BOX crosslinker; Oxetane-functional diester
EINECS	Contact for details

Quality Control

Our Bis[(3-Ethyloxetan-3-Yl)Methyl] Benzene-1,4-Dicarboxylate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance protocols.

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 strong acids, organic solvents, and strong oxidizing agents. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Color (APHA)	≤ 100
Water Content (KF)	≤ 0.1%
Acid Value	≤ 1.0 mg KOH/g

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