Description

Acetic Acid, (2-Hydroxyethoxy)-, (3-Ethyl-3-Oxetanyl)Methyl Ester (9Ci) is a specialized oxetane-functional monomer and reactive diluent. This compound is valued for its ability to impart enhanced cross-linking density, toughness, and chemical resistance to polymer matrices. It is primarily sought by formulators and manufacturers in the advanced coatings, photoresists, and high-performance adhesives industries.

Application

• UV-Curable Coatings & Inks: Acts as a reactive diluent and cross-linker to improve hardness, adhesion, and solvent resistance.
• Photoresists & Electronic Materials: Used in the formulation of photo-patternable resins for semiconductor and display manufacturing.
• High-Performance Adhesives & Sealants: Enhances the thermal stability and mechanical properties of structural adhesives.
• Dental & Biomedical Composites: Serves as a monomer in light-curable composites requiring high strength and biocompatibility.
• Fiber Optic Coatings: Provides protective, durable layers with excellent optical clarity and environmental resistance.
• 3D Printing Resins (SLA/DLP): A key component in formulating resins for additive manufacturing, offering precise curing and final part durability.

Basic Information

Item	Detail
Product Name	Acetic Acid, (2-Hydroxyethoxy)-, (3-Ethyl-3-Oxetanyl)Methyl Ester (9Ci)
CAS No.	524067-99-0
Molecular Formula	C10H18O5
Molecular Weight	218.25 g/mol
Synonyms	3-Ethyl-3-[(2-hydroxyethoxy)methyl]oxetane acetate; (3-Ethyloxetan-3-yl)methyl 2-(2-hydroxyethoxy)acetate; Oxetane acetic acid, (2-hydroxyethoxy)-, (3-ethyl-3-oxetanyl)methyl ester; EHOXA; Reactive Oxetane Diluent; Light-sensitive (store away from light)
EINECS	Contact for details

Quality Control

Every batch of our Acetic Acid, (2-Hydroxyethoxy)-, (3-Ethyl-3-Oxetanyl)Methyl Ester is produced under a strict quality management system. We ensure compliance with relevant industry standards through rigorous in-process and final release testing, including assay, purity, and identity confirmation. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

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 heat, sparks, and open flame. This material is moisture-sensitive; ensure containers are kept tightly sealed when not in use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Acid Value	≤ 1.0 mg KOH/g
Refractive Index (20°C)	1.450 - 1.460
Density (20°C)	1.10 - 1.20 g/mL

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