1,3-Butanediol dimethacrylate
CAS 1189-08-8
EC 214-711-0
Formula C12H18O4
MW 226.27 g/mol
Monomers & Building Blocks Plastics & PolymersPrinting & PackagingCoatings, Adhesives, Sealants & Elastomers Cross-linking & CuringPolymerization Initiation
Description
1,3-Butanediol dimethacrylate (CAS 1189-08-8) is a bifunctional methacrylate monomer commercially available under trade names including SR 297 and X 970, and also referenced as 1,3-butylene dimethacrylate or tetramethylene glycol dimethacrylate. It carries no assigned E-code and is classified under HS code 2916.14.2050.
In UV- and peroxide-cured coating systems, its two reactive methacrylate groups form covalent bridges between polymer chains, increasing crosslink density and improving hardness and solvent resistance. In structural adhesives and sealant formulations, it functions as a reactive diluent and crosslinker simultaneously, reducing viscosity while contributing to network formation during cure.
This product is supplied as a clear liquid and is registered under REACH. Procurement teams should confirm SDS compliance with EU GHS requirements and verify inhibitor levels, as stabilised grades are standard for storage stability. Packaging formats typically include drums and IBCs for industrial volumes.
In UV- and peroxide-cured coating systems, its two reactive methacrylate groups form covalent bridges between polymer chains, increasing crosslink density and improving hardness and solvent resistance. In structural adhesives and sealant formulations, it functions as a reactive diluent and crosslinker simultaneously, reducing viscosity while contributing to network formation during cure.
This product is supplied as a clear liquid and is registered under REACH. Procurement teams should confirm SDS compliance with EU GHS requirements and verify inhibitor levels, as stabilised grades are standard for storage stability. Packaging formats typically include drums and IBCs for industrial volumes.
Physical Properties
| Boiling Point | 290 °C (lit.) |
| Density | 1.01 g/mL at 25 °C(lit.) |
| Flash Point | >230 °F |
| Color | Colorless |
| Form | clear liquid |
| Water Solubility | 243mg/L at 20℃ |
| Vapor Pressure | 1.1hPa at 20℃ |
| Refractive Index | n 20/D 1.456(lit.) |
| Log P | 3.1 at 20℃ |
Safety & Handling (Learn More)
Warning GHS07
H
H315H317H319H335
P
P261P264P271P272P280P319P321P405P501P264+P265P302+P352P304+P340P332+P317P333+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 2916.14.2050 |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 1 |
Other Names
3-(2-methylprop-2-enoyloxy)butyl 2-methylprop-2-enoate1,3-butyleneglycol dimethacrylateX 970SR 297DIMETHACRYLATETETRAMETHYLENE GLYCOL1,4-BUTYLENE DIMETHACRYLATE1,3-BUTYLENE DIMETHACRYLATE
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