2,4-Pentadienal
2,4-戊二烯醛
Also known as: 1,3-Pentadiene-5-one, penta-2,4-dienal, Pentadienal, NSC 65074
2,4-Pentadienal (CAS 764-40-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H6O and a molecular weight of 82.10050 g/mol. It is also known as 1,3-Pentadiene-5-one, penta-2,4-dienal and Pentadienal. Key properties include a boiling point of 128.7ºC at 760 mmHg, a density of 0.845 g/cm3 and a flash point of 44.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 764-40-9
- Jingsj CID
- J-34729-5
- Molecular Formula
- C5H6O
- Chinese Name
- 2,4-戊二烯醛
- Molecular Weight
- 82.10050 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 128.7ºC at 760 mmHg |
|---|---|
| Density | 0.845 g/cm3 |
| Flash Point | 44.4ºC |
Frequently Asked Questions
What is the CAS number of 2,4-Pentadienal?
The CAS number of 2,4-Pentadienal is 764-40-9.
What are the molecular formula and molecular weight of 2,4-Pentadienal?
2,4-Pentadienal has molecular formula C5H6O and molecular weight 82.10050 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,4-Pentadienal (CAS 764-40-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34729-5 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.