Mesaconic acid
Also known as: (2E)-2-Methyl-2-butenedioic acid, 2-Butenedioic acid, 2-methyl-, (2E)-, 2-Methylfumaric acid, Butenedioic acid, methyl-, (E)-, EINECS 207-859-2, Fumaric acid, methyl-, MFCD00002653, Methylfumaric Acid, trans-Methylbutenedioic acid
Mesaconic acid (CAS 498-24-8) 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 130.09900 g/mol. Key properties include a melting point of 200-202ºC, a boiling point of 336.6ºC at 760 mmHg, a density of 1.387 g/cm3 and a flash point of 171.5ºC. 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.
- 498-24-8
- Jingsj CID
- J-1332407-7
- Molecular Formula
- C5H6O4
- Molecular Weight
- 130.09900 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 200-202ºC |
|---|---|
| Boiling Point | 336.6ºC at 760 mmHg |
| Density | 1.387 g/cm3 |
| Flash Point | 171.5ºC |
| Exact Mass | 130.02700 |
| PSA | 74.60000 |
| LogP | 0.10190 |
| Vapor Pressure | 0mmHg at 25°C |
| Refractive Index | 1.514 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2917190090 |
|---|---|
| Summary | 2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Mesaconic acid?
The CAS number of Mesaconic acid is 498-24-8.
What are the molecular formula and molecular weight of Mesaconic acid?
Mesaconic acid has molecular formula C5H6O4 and molecular weight 130.09900 g/mol.
Is Mesaconic acid hazardous?
Mesaconic acid 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 Mesaconic acid?
For Mesaconic acid, Upstream Products: Itaconic acid, Citraconic acid, Diethyl itaconate; Downstream Products: (R)-(+)-Methylsuccinic acid, (S)-(-)-Methylsuccinic acid, Methacrylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Mesaconic acid (CAS 498-24-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1332407-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.