4-Penten-2-one
4-戊烯-2-酮
Also known as: Allyl methyl ketone, Methyl allyl ketone, Vinyl acetone, Pent-4-en-2-one
4-Penten-2-one (CAS 13891-87-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H8O and a molecular weight of 84.11640 g/mol. It is also known as Allyl methyl ketone, Methyl allyl ketone and Vinyl acetone. Key properties include a melting point of 94 °C (lit.), a boiling point of 93.9ºC at 760mmHg, a density of 0.814g/cm3 and a flash point of 10.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 13891-87-7
- Jingsj CID
- J-8050-3
- Molecular Formula
- C5H8O
- Chinese Name
- 4-戊烯-2-酮
- Molecular Weight
- 84.11640 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 94 °C (lit.) |
|---|---|
| Boiling Point | 93.9ºC at 760mmHg |
| Density | 0.814g/cm3 |
| Flash Point | 10.8ºC |
Frequently Asked Questions
What is the CAS number of 4-Penten-2-one?
The CAS number of 4-Penten-2-one is 13891-87-7.
What are the molecular formula and molecular weight of 4-Penten-2-one?
4-Penten-2-one has molecular formula C5H8O and molecular weight 84.11640 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Penten-2-one (CAS 13891-87-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-8050-3 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.