Description

2-Hydroxyethyl 2-Methylprop-2-Enoate is a versatile acrylate ester monomer, also known as 2-hydroxyethyl methacrylate (HEMA). This compound is valued for its bifunctional nature, featuring both a polymerizable methacrylate group and a reactive hydroxyl group, enabling its use in a wide range of copolymerization and cross-linking reactions. It is a critical raw material for industries requiring high-performance, durable polymers with tailored properties such as adhesion, flexibility, and chemical resistance. Key sectors that utilize this monomer include advanced coatings, dental materials, adhesives, and contact lens manufacturing.

Application

• Dental Composites and Restoratives: A primary component in light-curable dental fillings, crowns, and adhesives due to its excellent biocompatibility and ability to form hard, durable polymers.
• UV-Curable Coatings and Inks: Used in formulations for wood, plastic, and metal coatings, providing fast curing, high gloss, and superior surface hardness.
• Adhesives and Sealants: Imparts strong adhesion to various substrates and enhances flexibility in structural and pressure-sensitive adhesive formulations.
• Contact Lens Manufacturing: Serves as a key monomer in the production of hydrophilic soft contact lenses, contributing to oxygen permeability and water content.
• Acrylic Resins and Emulsions: Used as a co-monomer to modify the properties of acrylic polymers, improving impact resistance, adhesion, and cross-linking density.
• Fiber Optic Coatings: Applied in protective coatings for optical fibers due to its clarity, durability, and appropriate refractive index.
• Lithographic Printing Plates: A component in photopolymerizable resins used for creating high-resolution printing plates.
• Biomedical Hydrogels: Employed in the synthesis of hydrogels for drug delivery systems and tissue engineering scaffolds.

Basic Information

Product Name	2-Hydroxyethyl 2-Methylprop-2-Enoate
CAS No.	82601-55-6
Molecular Formula	C6H10O3
Molecular Weight	130.14 g/mol
Synonyms	2-Hydroxyethyl methacrylate; HEMA; Glycol methacrylate; Ethylene glycol monomethacrylate; 2-Propenoic acid, 2-methyl-, 2-hydroxyethyl ester; Methacrylic acid, 2-hydroxyethyl ester; β-Hydroxyethyl methacrylate
EINECS	Contact for details

Quality Control

Our 2-Hydroxyethyl 2-Methylprop-2-Enoate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards and consistent performance for sensitive applications like dental and medical materials. Key parameters including assay, identity, and impurity profiles are verified. Certificates of Analysis (COA) documenting full specifications are available upon request for every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 15-25°C (59-77°F). This product is incompatible with strong acids and organic solvents; keep away from heat, sparks, and open flames. To prevent premature polymerization, it is stabilized with an appropriate inhibitor (e.g., MEHQ).

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Acidity (as Methacrylic Acid)	≤ 0.5%
Inhibitor (MEHQ)	100 - 250 ppm
Refractive Index (n20D)	1.450 - 1.455
Density (20°C)	1.070 - 1.080 g/mL

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