Description

Hydroxymethylmethacrylate is a versatile bifunctional monomer containing both a hydroxyl group and a methacrylate group. This unique structure makes it a critical building block for synthesizing specialty polymers with tailored properties, such as improved adhesion, crosslinking density, and hydrophilicity. It is essential for manufacturers in the coatings, adhesives, and advanced materials sectors seeking to enhance product performance.

Application

• Crosslinking Agent in thermosetting acrylic resins for automotive, industrial, and can coatings.
• Hydrophilic Modifier in contact lenses, hydrogel materials, and biomedical devices.
• Adhesion Promoter in pressure-sensitive adhesives, laminating adhesives, and primers for difficult substrates.
• Reactive Diluent & Co-monomer in UV-curable inks, coatings, and 3D printing resins.
• Polymer Modification for introducing functional sites into polyolefins, polyesters, and other polymers.
• Synthesis Intermediate for producing other specialty monomers, surfactants, and pharmaceutical intermediates.

Basic Information

Product Name	Hydroxymethylmethacrylate
CAS No.	21982-30-9
Molecular Formula	C5H8O3
Molecular Weight	116.12 g/mol
Synonyms	2-Hydroxymethyl methacrylate; Methacrylic acid 2-hydroxyethyl ester (common misnomer for the hydroxymethyl variant); Glycol methacrylate (related term); HEMA analogue; Hydroxyethyl methacrylate isomer; 2-(Hydroxymethyl)-2-methylacrylate; Methyl 2-(hydroxymethyl)acrylate; Bifunctional methacrylate monomer
EINECS	244-658-1

Quality Control

Our Hydroxymethylmethacrylate is manufactured under a strict quality management system. Each batch is tested to ensure high purity and consistency, with key parameters including assay, identity, and controlled levels of impurities and inhibitors. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C) under an inert atmosphere (e.g., nitrogen) to prevent oxidation and polymerization. Keep away from heat, sparks, and incompatible materials such as strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC/HPLC)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %
Inhibitor (MEHQ)	100 - 250 ppm
Acidity (as Methacrylic Acid)	≤ 0.5 %

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