(E)-2-Pentenal

反式-2-戊烯醛

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. It is also known as trans-2-Pentenal, (2E)-2-Pentenal and (E)-pent-2-enal. 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. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1576-87-0
Jingsj CID
J-35595-7
Molecular Formula
C5H8O
Chinese Name
反式-2-戊烯醛
Molecular Weight
84.116 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point126.8±0.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point22.8±0.0 °C

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger

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.

Data compiled from public chemical databases 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-35595-7 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.