Maleic anhydride
Also known as: 2,5-FURANDIONE, 2,5-Furandione, ANHYDRIDE MALEIC, BM-10, EINECS 203-571-6, Furan-2,5-Dione, Lytron 820, MALEIC ANHYDRIDE 98+%, MALEIC ANHYDRIDE 99.5%, MALEIC ANHYDRIDE, POWDER, 95%, MALIEC ANHYDRIDE, MAN, MFCD00005518, Maleic, MaleicAnhydride>97%, TOXILIC ANHYDRIDE, Toxilic anhydride, dihydro-2,5-dioxofuran, mala, maleic acid anhydride
Maleic anhydride (CAS 108-31-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H2O3 and a molecular weight of 98.057 g/mol. Key properties include a melting point of 51-56 °C(lit.), a boiling point of 202.0±0.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 103.3±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H314 — Causes severe skin burns and eye damage and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 108-31-6
- Jingsj CID
- J-33209-7
- Molecular Formula
- C4H2O3
- Molecular Weight
- 98.057 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 51-56 °C(lit.) |
|---|---|
| Boiling Point | 202.0±0.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 103.3±0.0 °C |
| Exact Mass | 98.000397 |
| PSA | 43.37000 |
| LogP | -0.37 |
| Additional Property | 3.4 (vs air) |
| Vapor Pressure | 0.3±0.4 mmHg at 25°C |
| Refractive Index | 1.515 |
| Additional Property | 79 g/100 mL (25 ºC) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H314 — Causes severe skin burns and eye damage
- H317 — May cause an allergic skin reaction
- H334 — May cause allergy or asthma symptoms if inhaled
- H372 — Causes damage to organs through prolonged exposure
- H373 — May cause damage to organs through prolonged exposure
Customs & Trade Information
| HS Code | 2917140000 |
|---|---|
| Summary | 2917140000 furan-2,5-dione。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。Lowest tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Maleic anhydride?
The CAS number of Maleic anhydride is 108-31-6.
What are the molecular formula and molecular weight of Maleic anhydride?
Maleic anhydride has molecular formula C4H2O3 and molecular weight 98.057 g/mol.
Is Maleic anhydride hazardous?
Maleic anhydride has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of Maleic anhydride?
For Maleic anhydride, Upstream Products: n-Butane, benzene, Furfural; Downstream Products: 1-(4-tert-butylphenyl)pyrrole-2,5-dione, meso-2,3-Dibromosuccinic acid, 2-[3-Methyl-2-(methylimino)-4-oxo-1,3-thiazolidin-5-yl]acetic 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. "Maleic anhydride (CAS 108-31-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33209-7 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.