Products Description
1,4-Butanediol dimethacrylate (CAS No. 2082-81-7) is a transparent, colorless to pale yellow liquid and a multifunctional cross-linking monomer. It is widely utilized in dental composites, sealants, inks and polymer-related industries. This monomer improves materials’ mechanical strength, thermal stability and chemical resistance, and is typically stabilized by adding 200–300 ppm of MEHQ.
Chemical Properties
| Melting point | −117 °C(lit.) |
| Boiling point | 132-134 °C/4 mmHg (lit.) |
| Density | 1.023 g/mL at 25 °C (lit.) |
| Vapor density | 2.09 (vs air) |
| Vapor pressure | 430 mm Hg ( 25 °C) |
| Refractive index | n20/D 1.456(lit.) |
| Fp | 38 °F |
| Storage temp | 2-8°C |
| Solubility | Chloroform (Sparingly), Methanol (Slightly) |
| Form | Liquid |
| Pka | 9.8(at 25℃) |
| Color | Clear colorless to slightly yellow |
| Water Solubility | 243mg/L at 20℃ |
| Merck | 149710 |
| BRN | 956566 |
| LogP | 3.1 at 20℃ |
| CAS DataBase Reference | 2082-81-7(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,4-Butylene glycol dimethacrylate(2082-81-7) |
| EPA Substance Registry System | 1,4-Butanediol dimethacrylate (2082-81-7) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 36/37/38-43 |
| Safety Statements | 3-16-26-29-39-36/37/39 |
| RIDADR | UN 2924 3/PG 2 |
| WGK Germany | 2 |
| RTECS | PA0350000 |
| F | 9-34 |
| HazardClass | 3 |
| PackingGroup | I |
| HS Code | 29161400 |
| Hazardous Substances Data | 2082-81-7(Hazardous Substances Data) |
Product Application
Cross-linking： AgentEnhances the physical characteristics of polymers and copolymers.
Dental Applications：Incorporated into dental composite resins and sealing materials.
Coating and Ink Systems：Applied in UV-curable coatings, printing inks, and adhesive formulations.
Industrial Foam Production：Utilized for manufacturing methacrylate-based polymeric foams.
