Diethyl maleate
ALDRICH/W505005 - ≥96%, FG
Synonym: Maleic acid diethyl ester
CAS Number: 141-05-9
Empirical Formula (Hill Notation): C8H12O4
Molecular Weight: 172.18
EC Number: 205-451-9
MDL Number: MFCD00009191
Linear Formula: C2H5OCOCH=CHCOOC2H5
Product Type: Chemical
| application(s) | flavors and fragrances |
| assay | ≥96% |
| autoignition temp. | 662 °F |
| biological source | synthetic |
| bp | 225 °C (lit.) |
| density | 1.064 g/mL at 25 °C (lit.) |
| documentation | see Safety & Documentation for available documents |
| food allergen | no known allergens |
| grade | FG |
| InChI | 1S/C8H12O4/c1-3-11-7(9)5- |
| InChI key | IEPRKVQEAMIZSS-WAYWQWQTSA |
| mp | −10 °C (lit.) |
| organoleptic | banana; fruity; citrus |
| Quality Level | 300 ![]() |
400 ![]() |
|
| refractive index | n |
| reg. compliance | EU Regulation 1334/2008 & 872/2012 |
| FDA 21 CFR 110 | |
| SMILES string | CCOC(=O)C=C/C(=O)OCC |
| vapor density | 5.93 (vs air) |
| vapor pressure | 1 mmHg ( 14 °C) |
| General description: | Diethyl maleate is reported to occur in the cabernet sauvignon wine. |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 10 kg in poly drum |
| Symbol | GHS07 |
| Signal word | Warning |
| Hazard statements | H317 - H319 - H412 |
| Precautionary statements | P273 - P280 - P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | Xi |
| Risk Statements | 36-43-52/53 |
| Safety Statements | 26-36/37 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 2 |
| Purity | ≥96% |
| bp | 225 °C (lit.) |
| mp | −10 °C (lit.) |
| Density | 1.064 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12164502 |


