Molekula
Diethyl maleate
Diethyl maleate is a diester of maleic acid used as a reagent in organic synthesis, particularly in Diels-Alder reactions and as a crosslinking agent. It is a colorless to pale yellow liquid with a pungent odor. CAS: 141-05-9, molecular formula: C6H8O4, molecular weight: 172.18 g/mol. Store at ambient temperature. Signal word: Warning. Molekula supplies Diethyl maleate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Diethyl maleate is a diester of maleic acid used as a reagent in organic synthesis, particularly in Diels-Alder reactions and as a crosslinking agent. It is a colorless to pale yellow liquid with a pungent odor. CAS: 141-05-9, molecular formula: C6H8O4, molecular weight: 172.18 g/mol. Store at ambient temperature. Signal word: Warning. Molekula supplies Diethyl maleate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 93 C |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 141-05-9 |
| Molecular Formula | C2H5OCOCH=CHCOOC2H5 |
| Molecular Weight | 172.18 |
| SMILES | O=C(OCC)C=CC(=O)OCC |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29171970 |
| Tariff Code | 2917198090 |
Safety & GHS
-
Explosive
GHS01
Hazard statements
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P264 Wash thoroughly after handling
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
For research and industrial use only
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is diethyl maleate used for?
Diethyl maleate is primarily used as a chemical intermediate in the synthesis of polymers and pharmaceuticals, and as a reagent in organic synthesis.
What is the chemical formula and molecular weight of diethyl maleate?
The formula is C2H5OCOCH=CHCOOC2H5 and the molecular weight is 172.18 g/mol.
How should diethyl maleate be stored?
It should be stored at ambient temperature, away from moisture and direct sunlight.
What grade of diethyl maleate does Molekula supply?
Molekula supplies diethyl maleate in technical grade; custom grades are available upon request.
Can Molekula supply diethyl maleate in bulk?
Yes, Molekula can supply diethyl maleate in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a purchase of diethyl maleate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.