MATERIAL PROFILE / Individual substance
CAS: 2082-81-7
Function: Difunctional methacrylate crosslinker and reactive diluent
Compare this material →This material’s published information has not yet been verified by a human reviewer.
Human verification concerns the stated information and scope. It is separate from an EcoSafe score, certification or safety approval.1,4-Butanediol dimethacrylate is a difunctional reactive monomer used to build crosslinked polymer networks. Supplier examples include reactive coatings, composites, PVC plastisols and peroxide-cured elastomer systems; inhibitor level and exact grade remain important formulation variables.
Chemistry: 1,4-Butanediol dimethacrylate
Listed supplier: Multiple suppliers · named grade references
Chemical identity only; purity, grade and supplier composition require separate documentation.
Identity snapshot: 2026-11-01 UTC.
CAS identity reference ↗Source-linked research · awaiting human review · 2026-11-02
BDDMA is a bifunctional monomer that crosslinks during free-radical curing. Evonik describes reactive coatings, composite resins, PVC plastisols and elastomer coagent uses. The exact formulation and cure conditions require qualified testing.
Application tags include composites, coatings, elastomers, adhesives and sealants. GEO additionally lists chemical anchors, acrylic flooring, synthetic marble and UV-curable wood coatings for its own BDDMA grade. These examples do not establish interchangeability among suppliers.
No grade-specific renewable-content certificate or life-cycle comparison is supplied. Use as a reactive diluent does not by itself establish a greener finished product. The supplied Polysciences grade has skin-irritation and sensitization hazards; low odour or low viscosity should not be read as proof of safety.
The supplied Polysciences SDS classifies skin irritation (H315) and skin sensitization (H317).
Polysciences 05973 min. 90% SDS, issue 11-Oct-2021. Obtain the current Evonik grade-specific SDS for that grade.
Read the source and complete SDS ↗16 of 16 defined fields are recorded with a source. This measures structured information currently on this site, not the completeness of every linked PDF. Missing fields remain in the denominator.
Coverage is separate from scientific accuracy, human verification and EcoSafe assessment. Molecular fields may not apply to a grade or family; they are not filled from another material to increase its score.
| Core field | Recorded information |
|---|---|
| Chemical name | 1,4-Butanediol dimethacrylate Source ↗ |
| CAS number | 2082-81-7 Source ↗ |
| Synonyms | BDDMA; tetramethylene glycol dimethacrylate; 1,4-butylene glycol dimethacrylate. Source ↗ |
| Molecular formula | C12H18O4 Source ↗ |
| Molecular weight | 226.27 Source ↗ |
| IUPAC name | 4-(2-methylprop-2-enoyloxy)butyl 2-methylprop-2-enoate Source ↗ |
| PubChem CID | 16387 Source ↗ |
| Identity sources | https://pubchem.ncbi.nlm.nih.gov/compound/16387 Source ↗ Source reference recorded for this record's scope; source freshness is a separate review. |
| Uses | Crosslinker in free-radical polymerization; adhesion promoter/hardener for PVC plastisols; coagent in peroxide-cured elastomers. Source ↗ |
| Hazards | The supplied Polysciences SDS classifies skin irritation (H315) and skin sensitization (H317). Source ↗ Polysciences 05973 min. 90% SDS, issue 11-Oct-2021. Obtain the current Evonik grade-specific SDS for that grade. |
| Appearance | Clear, slightly yellowish liquid with ester-like odour (Evonik grade). Source ↗ Evonik June 2020 TDS page 1; separate supplier scope from the Polysciences SDS. |
| Density | 1.024 g/cm³ Source ↗ 20 °C · DIN 51757 · Typical |
| Melting point | −23 °C Source ↗ Pressure not stated · OECD 102 · Typical |
| Boiling point | >211 °C Source ↗ Pressure “1,025 hPa” as printed; supplier notes polymerisation · OECD 103 · Typical |
| Solubility | 243 mg/L Source ↗ In water at 20 °C · OECD 105 · Typical |
| SDS/TDS | 1,4-Butanediol dimethacrylate — Polysciences SDS Source ↗ Exact supplier/grade reference; regional applicability and current issue require review. |
Evonik VISIOMER 1,4-BDDMA: supplier example with its own specification and benchmark physical data. Page 1 specifications are distinguished from page 2 benchmark physical data, which the supplier explicitly excludes from the specification. Degree of purity is ≥90.00%; reactive ester content is separately ≥98%. MEHQ stabilization is 100 ± 10 ppm. The Polysciences SDS describes a separate grade and must not be used to certify Evonik composition. No pH or ambiguous unitless Polysciences flash-point result has been imported.
| Property | Value | Conditions / method |
|---|---|---|
| Refractive index | 1.457 Typical | 20 °C; wavelength not stated Not stated Source ↗ |
| Solubility | 243 mg/L Typical | In water at 20 °C OECD 105 Source ↗ |
| Boiling point | >211 °C Typical | Pressure “1,025 hPa” as printed; supplier notes polymerisation OECD 103 Source ↗ |
| Density | 1.024 g/cm³ Typical | 20 °C DIN 51757 Source ↗ |
| Viscosity | 6.5 mPa·s Typical | Dynamic viscosity at 20 °C Not stated Source ↗ |
| Purity / assay | ≥90.00 % Specification | VISIOMER 1,4-BDDMA; degree of purity, distinct from reactive ester content ≥98% M2-15 (GC) Source ↗ |
| Water content | ≤0.100 % Specification | VISIOMER 1,4-BDDMA; maximum water content M3, Karl Fischer Source ↗ |
| Flash point | 139 °C Typical | Pensky-Martens closed cup ASTM D93 Source ↗ |
| Melting / softening behavior | −23 °C Typical | Pressure not stated OECD 102 Source ↗ |
Archived copies are dated references. Confirm the latest document for your supplier, grade and region.
SDS · Polysciences
Issue 10/11/2021; footer 02/27/2026 · USA / English
Polysciences 05973, min. 90%. CAS is explicit. Separate supplier/grade from Evonik; the footer is not treated as a new issue date.
Open archived copy ↗ · Download · Supplier source ↗TDS · Evonik Operations GmbH
June 2020 · English; supplier in Germany
CAS explicitly matches. Evonik VISIOMER 1,4-BDDMA specification and benchmark data apply to this stabilized grade, not to the Polysciences product.
Open archived copy ↗ · Download · Supplier source ↗Confirm grade, composition, current availability and production location directly with the supplier.
Supplier-listed identity match; purity, additives, performance and origin require separate confirmation.
Supplier reference ↗Supplier-listed identity match; purity, additives, performance and origin require separate confirmation.
Supplier reference ↗Röhm · Methacrylate monomers / acrylic building blocks
A family research lead, not a confirmed supplier of this exact substance.
Family reference ↗Identity data and category placement do not establish safety, suitability or environmental performance. Obtain current grade-specific documentation.
Industrial Chemicals
Base Chemicals & Intermediates · Organic Intermediates
Coatings
Acrylic Coatings
Plastics & Rubber Polymers
Thermosets · Polymer Additives & Processing Aids
Library source check: November 2, 2026. Sources may require supplier access.