Dioctyl fumarate
CAS Number
141-02-6
EC Number
205-448-2
What is Dioctyl fumarate?
Dioctyl fumarate (CAS 141-02-6), also known as bis(2-ethylhexyl) fumarate, is a difunctional ester monomer used as a reactive building block in polymer synthesis and as a plasticizing agent.
Where is Dioctyl fumarate used?
- Plastics and polymer manufacturing: copolymerizable monomer
- Acrylic, vinyl and specialty polymer systems: modifies mechanical and thermal properties
- Rubber compounding: improves flexibility and processing characteristics in elastomeric formulations
- Coatings: contributes to film formation and flexibility when copolymerized with acrylates or other vinyl monomers, in solvent-borne and UV-curable systems
- Adhesive and sealant formulators use it as a reactive plasticizer where conventional non-reactive plasticizers would compromise bond integrity or long-term durability.
Commercial specifications
- Purity specifications typically 98% or higher, depending on supplier requirements
- Bulk liquid and intermediate packaging formats
Other Names (Synonyms)
Bis(2-ethylhexyl) fumarate|Di(2-ethylhexyl) fumarate|2-Ethylhexyl fumarate|RC Comonomer DOF|DIETHYLHEXYL FUMARATE|2-Butenedioic acid, bis(2-ethylhexyl) ester|FUMARIC ACID, BIS(2-ETHYLHEXYL) ESTER|2-Butenedioic acid (2E)-, 1,4-bis(2-ethylhexyl) ester
What are the physical properties of Dioctyl fumarate?
Melting Point −58 °C(lit.)
Boiling Point 160 °C @ Press: 0.5 Torr
Density 0.9398 g/cm³ @ Temp: 20 °C
Flash Point 190 °C
Color Colourless
Odor clear mobile liq., mild odor
Form Oil
Water Solubility 1.19mg/L at 20℃
Vapor Pressure 0Pa at 20℃
Refractive Index n20/D 1.458(lit.)
Log P 7.94
How is Dioctyl fumarate classified and handled safely? Learn More
Hazard Statements
H315 (26.7%): Causes skin irritation [Warning Skin corrosion/irritation]
H411 (27.6%): Toxic to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
Which trade and regulatory codes apply to Dioctyl fumarate?
HS Code 29171900