Description

2-Methyl-1,8-Octanediol Dimethacrylate is a specialized difunctional methacrylate monomer characterized by its long-chain aliphatic structure. This compound is valued for its ability to impart flexibility, toughness, and low shrinkage to polymer networks, making it a critical component in high-performance formulations. It is primarily sought by manufacturers in the coatings, adhesives, dental materials, and advanced composite industries for developing durable and resilient end-products.

Application

• UV-Curable Coatings & Inks: Acts as a reactive diluent and crosslinker to enhance flexibility, adhesion, and chemical resistance in wood, plastic, and metal coatings.
• Dental Composites & Restoratives: Used as a co-monomer to reduce polymerization stress, improve mechanical strength, and increase the durability of dental filling materials.
• Adhesives & Sealants: Imparts toughness and weatherability to structural adhesives, anaerobic sealants, and pressure-sensitive adhesive systems.
• Fiber-Reinforced Composites: Serves as a matrix resin component for automotive and aerospace composites, contributing to impact resistance and dimensional stability.
• Optical Lenses & Components: Employed in casting resins for optical applications due to its ability to form clear, low-yellowing polymers.
• 3D Printing Resins (SLA/DLP): A key ingredient in formulations requiring high resolution, excellent elongation, and post-cure toughness.

Basic Information

Product Name	2-Methyl-1,8-Octanediol Dimethacrylate
CAS No.	120703-10-8
Molecular Formula	C₁₇H₂₈O₆
Molecular Weight	328.40 g/mol
Synonyms	1,8-Octanediol, 2-methyl-, 1,8-dimethacrylate; 2-Methyloctane-1,8-diyl bis(2-methylacrylate); MODDMA; Difunctional Methacrylate MON-802; Long-chain aliphatic dimethacrylate; 2-Methyl-1,8-octamethylene dimethacrylate
EINECS	Contact for details

Quality Control

Our 2-Methyl-1,8-Octanediol Dimethacrylate is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and GC for residual monomer content, to ensure it meets precise specifications for high-performance applications. Certificates of Analysis (COA) documenting identity, purity, and key physical parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 15-25°C. Keep away from heat, sparks, and open flame. Incompatible with strong acids and oxidizing agents. For long-term storage, consider under an inert atmosphere to maintain monomer integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Color (APHA)	≤ 100
Acid Value	≤ 1.0 mg KOH/g
Water Content (KF)	≤ 0.1%
Refractive Index (20°C)	1.458 - 1.462
Density (20°C)	1.00 - 1.05 g/cm³

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