Description

Bis(2-Methacryloxyethyl)-N,N'-1,9-Nonylene Biscarbamate is a specialized difunctional methacrylate monomer containing both urethane and methacryloyl groups. This compound matters as a high-performance crosslinking agent and reactive diluent, offering enhanced mechanical properties, adhesion, and chemical resistance to polymer networks. It is primarily needed by manufacturers in the advanced coatings, dental materials, photopolymer resins, and specialty adhesives industries seeking to improve product durability and performance.

Application

• Dental Restorative Composites: A key crosslinker for Bis-GMA free or reduced formulations, enhancing fracture toughness and wear resistance.
• UV-Curable Coatings & Inks: Serves as a reactive diluent and crosslinking monomer to improve hardness, flexibility, and chemical resistance on various substrates.
• Photopolymer Resins for 3D Printing: Used in stereolithography (SLA) and digital light processing (DLP) resins to tailor viscosity, cure speed, and final part properties.
• High-Performance Adhesives: Incorporated into acrylic-based structural adhesives to boost thermal stability and bond strength under demanding conditions.
• Fiber Optic Coatings: Contributes to the matrix of primary and secondary coatings, providing essential protection and signal transmission properties.
• Electronic Encapsulants: Used in potting and encapsulation compounds to protect sensitive components, offering good dielectric properties and moisture resistance.

Basic Information

Product Name	Bis(2-Methacryloxyethyl)-N,N'-1,9-Nonylene Biscarbamate
CAS No.	41137-60-4
Molecular Formula	C25H40N2O8
Molecular Weight	496.60 g/mol
Synonyms	1,9-Nonamethylene bis(2-((methacryloyl)oxy)ethyl carbamate); UDMA-9; Urethane dimethacrylate (C9); 2-Propenoic acid, 2-methyl-, 1,1'-[1,9-nonanediylbis[oxy(2-oxo-3,1-propanediyl)imino(2-hydroxy-3,1-propanediyl)]] ester; Bis(METH) 9; Nonamethylene diurethane dimethacrylate; UDMA derivative (C9 chain)
EINECS	Contact for details

Quality Control

Our Bis(2-Methacryloxyethyl)-N,N'-1,9-Nonylene Biscarbamate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay by HPLC, determination of methacrylate content, and monitoring of key impurities like hydroquinone monomethyl ether (MEHQ). A Certificate of Analysis (COA) detailing purity, identity, and physical properties is provided with every shipment to ensure compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at temperatures between 15-25°C (59-77°F). This product is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). For long-term storage, it is recommended to keep the container under an inert gas atmosphere such as nitrogen or argon. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Methacrylate Equivalent Weight	248 - 252 g/eq
Water Content (KF)	≤ 0.2%
Inhibitor (MEHQ)	50 - 150 ppm
Viscosity @ 25°C	Contact for details
Refractive Index @ 20°C	Contact for details

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