3-Methoxy-2-cyclopenten-1-one
Also known as: 3-Methoxycyclopent-2-enone, 3-Methoxy-2-cyclopentenone, 2-Cyclopenten-1-one, 3-methoxy-, 3-Methoxycyclopent-2-en-1-one, 3-methoxycyclopent-2-ene-1-one
3-Methoxy-2-cyclopenten-1-one (CAS 4683-50-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C6H8O2 and a molecular weight of 112.127 g/mol. Key properties include a melting point of 49-53ºC(lit.), a boiling point of 214.9±29.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 96.5±17.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4683-50-5
- Jingsj CID
- J-39087-4
- Molecular Formula
- C6H8O2
- Molecular Weight
- 112.127 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 49-53ºC(lit.) |
|---|---|
| Boiling Point | 214.9±29.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 96.5±17.8 °C |
| Exact Mass | 112.052429 |
| PSA | 26.30000 |
| LogP | -0.04 |
| Vapor Pressure | 0.2±0.4 mmHg at 25°C |
| Refractive Index | 1.467 |
Customs & Trade Information
| HS Code | 2914509090 |
|---|---|
| Summary | HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3-Methoxy-2-cyclopenten-1-one?
The CAS number of 3-Methoxy-2-cyclopenten-1-one is 4683-50-5.
What are the molecular formula and molecular weight of 3-Methoxy-2-cyclopenten-1-one?
3-Methoxy-2-cyclopenten-1-one has molecular formula C6H8O2 and molecular weight 112.127 g/mol.
What are the upstream and downstream products of 3-Methoxy-2-cyclopenten-1-one?
For 3-Methoxy-2-cyclopenten-1-one, Upstream Products: Methanol, 1,3-Cyclopentanedione, Dimethyl sulfate; Downstream Products: methyl 4-methoxy-2-oxocyclopent-3-ene-1-carboxylate, 2-bromo-3-methoxycyclopent-2-enone, 3-(3-oxocyclopent-1-en-1-yl)benzonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Methoxy-2-cyclopenten-1-one (CAS 4683-50-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39087-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.