(E)-2-Pentenal
Also known as: trans-2-Pentenal, (2E)-2-Pentenal, (E)-pent-2-enal, 2-Pentenal, (E)-, 2-Ethylacrylic aldehyde, FEMA 3218, trans-2-Penten-1-al
(E)-2-Pentenal (CAS 1576-87-0) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H8O and a molecular weight of 84.116 g/mol. Key properties include a boiling point of 126.8±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 22.8±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1576-87-0
- Jingsj CID
- J-35595-3
- Molecular Formula
- C5H8O
- Molecular Weight
- 84.116 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 126.8±0.0 °C at 760 mmHg |
|---|---|
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 22.8±0.0 °C |
| Exact Mass | 84.057518 |
| PSA | 17.07000 |
| LogP | 1.04 |
| Vapor Pressure | 11.5±0.2 mmHg at 25°C |
| Refractive Index | 1.413 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2912190090 |
|---|---|
| Summary | 2912190090 acyclic aldehydes without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of (E)-2-Pentenal?
The CAS number of (E)-2-Pentenal is 1576-87-0.
What are the molecular formula and molecular weight of (E)-2-Pentenal?
(E)-2-Pentenal has molecular formula C5H8O and molecular weight 84.116 g/mol.
Is (E)-2-Pentenal hazardous?
(E)-2-Pentenal has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(E)-2-Pentenal (CAS 1576-87-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35595-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.