Functional Roles
Industries Served
Physical Properties
physical_description
Colorless liquid; [CHEMINFO]
color/form
White crystal or in liquid form
boiling_point
214 u00b0C
melting_point
0.8 u00b0C
flash_point
104 u00b0C Closed Cup
solubility
Insoluble in water; soluble in acetone and choloform
density
1.0452 g/cu cm at 20 u00b0C
vapor_density
5.93 (Air = 1)
vapor_pressure
Vapor pressure: 1 mm Hg at 53.2 u00b0C
autoignition_temperature
220 u00b0F (104 u00b0C)
decomposition
When heated to decomposition it emits acrid smoke and fumes.
kovats_retention_index
1160
other_experimental_properties
Conversion factor: 7.03 mg/cu m = 1ppm
GHS / SDS Safety
Warning
Irritant
Health Hazard
- H371 (30.2%): May cause damage to organs [Warning Specific target organ toxicity, single exposure]
- H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
- H401: Toxic to aquatic life [Hazardous to the aquatic environment, acute hazard]
- H335 (15.7%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]
- H315 (15.4%): Causes skin irritation [Warning Skin corrosion/irritation]
- H317 (11.7%): May cause an allergic skin reaction [Warning Sensitization, Skin]
- H302: Harmful if swallowed [Warning Acute toxicity, oral]
- H371: May cause damage to organs [Warning Specific target organ toxicity, single exposure]
- H373 (35.9%): May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
- H302 (98%): Harmful if swallowed [Warning Acute toxicity, oral]
Chemical Identity
| CAS Number | 623-91-6 |
| IUPAC Name | diethyl (E)-but-2-enedioate |
| InChI Key | IEPRKVQEAMIZSS-AATRIKPKSA-N |
| PubChem CID | 638144 |
Synonyms & Trade Names
Full Description
Diethyl fumarate (CAS 623-91-6) is an organic ester monomer with the molecular formula C8H12O4 that functions as a crosslinking and curing agent in polymer systems. This reactive diluent is utilized in coatings and construction applications as well as plastics and polymers manufacturing where controlled crosslinking is required. The compound has a melting point of 0.8°C, boiling point of 214°C, and is insoluble in water but soluble in acetone and chloroform.