Product Description of 1,4-Butanediol dimethacrylate CAS#2082-81-7
1,4-Butanediol Dimethacrylate (CAS No. 2082-81-7) is a clear, colorless to slightly yellow multifunctional methacrylate monomer widely used as a crosslinking agent in dental materials, sealants, inks, coatings, and polymer applications.
It helps improve mechanical strength, thermal stability, chemical resistance, and durability of finished materials. The product is typically stabilized with 200–300 ppm MEHQ to ensure storage stability.
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Chemical Properties of 1,4-Butanediol dimethacrylate CAS#2082-81-7
| 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) |
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Product Application of 1,4-Butanediol dimethacrylate CAS#2082-81-7
Crosslinking Agent: Enhances the strength, durability, and overall performance of polymers and copolymers.
Dental Applications: Used in dental composites and sealant formulations.
Coatings & Inks: Suitable for UV-curable coatings, printing inks, and adhesives.
Industrial Foams: Used in the production of methacrylate-based polymer foams.
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