Succinimide
Also known as: 2,5-Pyrrolidinedione, Succinic imide, Butanimide, 2,5-Dioxopyrrolidine, Dihydromaleimide, pyrrolidine-2,5-dione, SI, Orotric, Succinic acid imide
Succinimide (CAS 123-56-8) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C4H5NO2 and a molecular weight of 99.088 g/mol. Key properties include a melting point of 123-125 °C(lit.), a boiling point of 248.4±23.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 104.1±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 123-56-8
- Jingsj CID
- J-1523597-2
- Molecular Formula
- C4H5NO2
- Molecular Weight
- 99.088 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 123-125 °C(lit.) |
|---|---|
| Boiling Point | 248.4±23.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 104.1±22.6 °C |
| Exact Mass | 99.032028 |
| PSA | 46.17000 |
| LogP | -1.63 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.606 |
Customs & Trade Information
| HS Code | 2925190090 |
|---|---|
| Summary | 2925190090 other imides and their derivatives; salts thereof 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 Succinimide?
The CAS number of Succinimide is 123-56-8.
What are the molecular formula and molecular weight of Succinimide?
Succinimide has molecular formula C4H5NO2 and molecular weight 99.088 g/mol.
What are the upstream and downstream products of Succinimide?
For Succinimide, Upstream Products: 1-Methyl-2-pyrrolidinone, DL-Aspartic acid, L-Aspartic acid; Downstream Products: N-Acryloxysuccinimide, Butanedihydrazide, Bis(4-methoxyphenyl) disulfide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Succinimide (CAS 123-56-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523597-2 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.