4-Methoxy-3-buten-2-one
Also known as: (3E)-4-Methoxy-3-buten-2-one, trans-1-Methoxy-1-buten-3-one, trans-4-Methoxy-3-buten-2-one, 2-Methoxyvinyl methyl ketone, 4-Methoxybut-3-en-2-one, 1-Methoxy-1-buten-3-one
4-Methoxy-3-buten-2-one (CAS 4652-27-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H8O2 and a molecular weight of 100.116 g/mol. Key properties include a boiling point of 200.0±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 63.3±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4652-27-1
- Jingsj CID
- J-27880-8
- Molecular Formula
- C5H8O2
- Molecular Weight
- 100.116 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 200.0±0.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 63.3±0.0 °C |
| Exact Mass | 100.052429 |
| PSA | 26.30000 |
| LogP | -0.02 |
| Appearance | Liquid | Clear yellow |
| Vapor Pressure | 0.3±0.3 mmHg at 25°C |
| Refractive Index | 1.414 |
| Additional Property | Miscible with tetrahydrofuran, ether, acetonitrile and benzene. |
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 4-Methoxy-3-buten-2-one?
The CAS number of 4-Methoxy-3-buten-2-one is 4652-27-1.
What are the molecular formula and molecular weight of 4-Methoxy-3-buten-2-one?
4-Methoxy-3-buten-2-one has molecular formula C5H8O2 and molecular weight 100.116 g/mol.
What are the upstream and downstream products of 4-Methoxy-3-buten-2-one?
For 4-Methoxy-3-buten-2-one, Upstream Products: 4,4-Dimethoxy-2-butanone, 2-phenylpropionaldehyde, 1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene; Downstream Products: 1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene, 4,4-Dimethoxy-2-butanone, 9-methoxy-9-borabicyclo[3.3.1]nonane.
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-Methoxy-3-buten-2-one (CAS 4652-27-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27880-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.