2,3-Dimethylmaleic anhydride
2,3-二甲基马来酸酐
Also known as: 3,4-Dimethyl-2,5-furandione, 3,4-dimethylfuran-2,5-dione, Dimethylmaleic anhydride, Pyrocinchonic anhydride, 3,4-Dimethylmaleic anhydride
2,3-Dimethylmaleic anhydride (CAS 766-39-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H6O3 and a molecular weight of 126.110 g/mol. It is also known as 3,4-Dimethyl-2,5-furandione, 3,4-dimethylfuran-2,5-dione and Dimethylmaleic anhydride. Key properties include a melting point of 93-96 °C(lit.), a boiling point of 223.0±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 95.6±15.9 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 766-39-2
- Jingsj CID
- J-49058-6
- Molecular Formula
- C6H6O3
- Chinese Name
- 2,3-二甲基马来酸酐
- Molecular Weight
- 126.110 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 93-96 °C(lit.) |
|---|---|
| Boiling Point | 223.0±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 95.6±15.9 °C |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of 2,3-Dimethylmaleic anhydride?
The CAS number of 2,3-Dimethylmaleic anhydride is 766-39-2.
What are the molecular formula and molecular weight of 2,3-Dimethylmaleic anhydride?
2,3-Dimethylmaleic anhydride has molecular formula C6H6O3 and molecular weight 126.110 g/mol.
Is 2,3-Dimethylmaleic anhydride hazardous?
2,3-Dimethylmaleic anhydride has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,3-Dimethylmaleic anhydride (CAS 766-39-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49058-6 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.