9-Octadecene

9-十八烯

Also known as: (E)-octadec-9-ene, 9-OCTADECENE, 9-OCTADECENE 97%, 9-Octadecene,97%, MFCD00209669, Octadec-9-ene, Octadecane-9-ene

9-Octadecene (CAS 5557-31-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C18H36 and a molecular weight of 252.47800 g/mol. It is also known as (E)-octadec-9-ene, 9-OCTADECENE and 9-OCTADECENE 97%. Key properties include a boiling point of 322.2ºC at 760 mmHg, a density of 0.79g/cm3 and a flash point of 150.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5557-31-3
Jingsj CID
J-1090987-4
Molecular Formula
C18H36
Chinese Name
9-十八烯
Molecular Weight
252.47800 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point322.2ºC at 760 mmHg
Density0.79g/cm3
Flash Point150.4ºC

Frequently Asked Questions

What is the CAS number of 9-Octadecene?

The CAS number of 9-Octadecene is 5557-31-3.

What are the molecular formula and molecular weight of 9-Octadecene?

9-Octadecene has molecular formula C18H36 and molecular weight 252.47800 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "9-Octadecene (CAS 5557-31-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1090987-4 (accessed 2026-10-22).

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