Functional Roles
Industries Served
Physical Properties
physical_description
Water-white liquid; [Hawley] Colorless clear liquid; [MSDSonline]
boiling_point
218.00 u00b0C. @ 760.00 mm Hg
melting_point
1 - 2 u00b0C
solubility
1.40E+04 mg/L @ 30 u00b0C (exp)
kovats_retention_index
1077.3
GHS / SDS Safety
Warning
Irritant
- H317 (97.5%): May cause an allergic skin reaction [Warning Sensitization, Skin]
- H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]
- H412 (24.6%): Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
- H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
- H320: Causes eye irritation [Warning Serious eye damage/eye irritation]
- H319 (32%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H227: Combustible liquid [Warning Flammable liquids]
Chemical Identity
| CAS Number | 141-05-9 |
| IUPAC Name | diethyl (Z)-but-2-enedioate |
| InChI Key | IEPRKVQEAMIZSS-WAYWQWQTSA-N |
| PubChem CID | 5271566 |
Synonyms & Trade Names
Full Description
Diethyl maleate (CAS 141-05-9) is a reactive diethyl ester monomer with the molecular formula C8H12O4 that functions as a crosslinking and curing agent in polymer systems. This liquid compound (boiling point 218°C) serves as a reactive diluent in coatings & construction and plastics & polymers applications where controlled crosslinking is required. The material offers solubility of 14,000 mg/L at 30°C and is classified under GHS with a Warning signal word due to its irritant properties.