Monomethyl maleate
Also known as: Maleic acid monomethyl ester, Methyl hydrogen maleate, (2Z)-4-Methoxy-4-oxo-2-butenoic acid, (2Z)-4-Methoxy-4-oxobut-2-enoic acid, Monomethyl maleinate, MMM, MFCD00045905, EINECS 221-271-3, Methyl hydrogen (2Z)-2-butendioate, methyl hydrogen but-2-enedioate
Monomethyl maleate (CAS 3052-50-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H6O4 and a molecular weight of 130.099 g/mol. Key properties include a boiling point of 250.0±23.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 108.9±16.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 3052-50-4
- Jingsj CID
- J-1369597-1
- Molecular Formula
- C5H6O4
- Molecular Weight
- 130.099 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 250.0±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 108.9±16.1 °C |
| Exact Mass | 130.026611 |
| PSA | 63.60000 |
| LogP | -0.24 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.469 |
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 Monomethyl maleate?
The CAS number of Monomethyl maleate is 3052-50-4.
What are the molecular formula and molecular weight of Monomethyl maleate?
Monomethyl maleate has molecular formula C5H6O4 and molecular weight 130.099 g/mol.
What are the upstream and downstream products of Monomethyl maleate?
For Monomethyl maleate, Upstream Products: Maleic anhydride, Methanol, dimethyl maleate; Downstream Products: 1-(2-Methylphenyl)-1H-pyrrole-2,5-dione, N-Phenylmaleimide, dimethyl maleate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Monomethyl maleate (CAS 3052-50-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1369597-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.