4-Cyclopentene-1,3-dione
Also known as: 2-Cyclopentene-1,4-dione, cyclopent-4-ene-1,3-dione, 1,3-cyclopentenedione, 4-cyclopenten-1,3-dione, Maleimide-Related Compound 10, MFCD00001404, EINECS 213-219-3
4-Cyclopentene-1,3-dione (CAS 930-60-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H4O2 and a molecular weight of 96.084 g/mol. Key properties include a melting point of 34-36ºC(lit.), a boiling point of 226.3±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 83.9±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed 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.
- 930-60-9
- Jingsj CID
- J-1526359-9
- Molecular Formula
- C5H4O2
- Molecular Weight
- 96.084 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 34-36ºC(lit.) |
|---|---|
| Boiling Point | 226.3±0.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 83.9±0.0 °C |
| Exact Mass | 96.021126 |
| PSA | 34.14000 |
| LogP | -1.22 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.523 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H317 — May cause an allergic skin reaction
Customs & Trade Information
| HS Code | 2914299000 |
|---|---|
| Summary | 2914299000. other cyclanic, cyclenic or cyclotherpenic ketones without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Cyclopentene-1,3-dione?
The CAS number of 4-Cyclopentene-1,3-dione is 930-60-9.
What are the molecular formula and molecular weight of 4-Cyclopentene-1,3-dione?
4-Cyclopentene-1,3-dione has molecular formula C5H4O2 and molecular weight 96.084 g/mol.
Is 4-Cyclopentene-1,3-dione hazardous?
4-Cyclopentene-1,3-dione has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H317 — May cause an allergic skin reaction.
What are the upstream and downstream products of 4-Cyclopentene-1,3-dione?
For 4-Cyclopentene-1,3-dione, Upstream Products: cis-4-Cyclopentene-1,3-diol, Protoanemonin, Cyclopentadiene; Downstream Products: Croconic acid, 1,3-Cyclopentanedione, 3-Methoxy-2-cyclopenten-1-one.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Cyclopentene-1,3-dione (CAS 930-60-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1526359-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.