2,3-Dichloromaleic anhydride
Also known as: Dichloromaleic anhydride, 3,4-Dichlorofuran-2,5-dione, 2,5-Furandione, 3,4-dichloro-, Maleic anhydride, dichloro-
2,3-Dichloromaleic anhydride (CAS 1122-17-4) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C4Cl2O3 and a molecular weight of 166.947 g/mol. Key properties include a melting point of ~120 °C, a boiling point of 170.5±30.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 74.1±23.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1122-17-4
- Jingsj CID
- J-1325001-2
- Molecular Formula
- C4Cl2O3
- Molecular Weight
- 166.947 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | ~120 °C |
|---|---|
| Boiling Point | 170.5±30.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 74.1±23.6 °C |
| Exact Mass | 165.922455 |
| PSA | 43.37000 |
| LogP | 0.20 |
| Vapor Pressure | 1.5±0.3 mmHg at 25°C |
| Refractive Index | 1.549 |
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 2,3-Dichloromaleic anhydride?
The CAS number of 2,3-Dichloromaleic anhydride is 1122-17-4.
What are the molecular formula and molecular weight of 2,3-Dichloromaleic anhydride?
2,3-Dichloromaleic anhydride has molecular formula C4Cl2O3 and molecular weight 166.947 g/mol.
What are the upstream and downstream products of 2,3-Dichloromaleic anhydride?
For 2,3-Dichloromaleic anhydride, Upstream Products: Acetylenedicarboxylic acid, Maleic anhydride, Chloromaleic anhydride; Downstream Products: Fluoroimide, 4,5-Dichloro-3,6-pyridazinediol, 4,5-Dichlorophthalic 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. "2,3-Dichloromaleic anhydride (CAS 1122-17-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1325001-2 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.