Monoethyl fumarate
Also known as: Fumaric acid monoethyl ester, Ethyl hydrogen fumarate, Ethyl fumarate, Monoethyl trans-2-Butenedioate, 2-Butenedioic acid (E)-, monoethyl ester
Monoethyl fumarate (CAS 2459-05-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8O4 and a molecular weight of 144.125 g/mol. Key properties include a melting point of 64-69 ºC, a boiling point of 147 ºC (16 mmHg), a density of 1.2±0.1 g/cm3 and a flash point of 109.6±16.1 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2459-05-4
- Jingsj CID
- J-44332-3
- Molecular Formula
- C6H8O4
- Molecular Weight
- 144.125 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 64-69 ºC |
|---|---|
| Boiling Point | 147 ºC (16 mmHg) |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 109.6±16.1 °C |
| Exact Mass | 144.042252 |
| PSA | 63.60000 |
| LogP | 0.29 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.469 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Ausama Atwan, et al. Oral Fumaric Acid Esters for Psoriasis. Cochrane Database Syst Rev. 2015 Aug 10;2015(8):CD010497. |
|---|
Customs & Trade Information
| HS Code | 2918990090 |
|---|---|
| Summary | 2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Monoethyl fumarate?
The CAS number of Monoethyl fumarate is 2459-05-4.
What are the molecular formula and molecular weight of Monoethyl fumarate?
Monoethyl fumarate has molecular formula C6H8O4 and molecular weight 144.125 g/mol.
Is Monoethyl fumarate hazardous?
Monoethyl fumarate has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Monoethyl fumarate?
For Monoethyl fumarate, Upstream Products: Monoethyl fumarate, Ethyl diazoacetate, Maleic anhydride; Downstream Products: Maleic anhydride, (E)-Ethyl 4-oxobut-2-enoate, Monoethyl succinate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Monoethyl fumarate (CAS 2459-05-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44332-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.