Skip to main content
Jingsj
.mol.sdf

(E)-3-Octen-2-one

Also known as: trans-3-Octen-2-one, (E)-Oct-3-en-2-one, 3-Octen-2-one, (3E)-, 3-Octen-2-one, (E)-, 3-octen-2-one, 3-octene-2-one, FEMA 3416, oct-3-en-2-one, (E)-1-Hexenyl methyl ketone

(E)-3-Octen-2-one (CAS 18402-82-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H14O and a molecular weight of 126.19600 g/mol. Key properties include a boiling point of 100ºC18 mm Hg(lit.), a density of 0.857 g/mL at 25ºC(lit.) and a flash point of 54.4 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
18402-82-9
Jingsj CID
J-1430246-6
Molecular Formula
C8H14O
Molecular Weight
126.19600 g/mol
Category
Ketones
Last updated
11/2/2026
Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point100ºC18 mm Hg(lit.)
Density0.857 g/mL at 25ºC(lit.)
Flash Point54.4 °C
Exact Mass126.10400
PSA17.07000
LogP2.32180
Vapor Pressure0.897mmHg at 25°C
Refractive Indexn20/D 1.448(lit.)

GHS Safety & Compliance

FlammableSignal word: Warning
  • H226 — Flammable liquid and vapour

Frequently Asked Questions

What is the CAS number of (E)-3-Octen-2-one?

The CAS number of (E)-3-Octen-2-one is 18402-82-9.

What are the molecular formula and molecular weight of (E)-3-Octen-2-one?

(E)-3-Octen-2-one has molecular formula C8H14O and molecular weight 126.19600 g/mol.

Is (E)-3-Octen-2-one hazardous?

(E)-3-Octen-2-one has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.

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)-3-Octen-2-one (CAS 18402-82-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1430246-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.