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1,5-Cyclooctadiene

Also known as: (1Z,5Z)-Cycloocta-1,5-diene, (Z,Z)-1,5-Cyclooctadiene, 1 5-CYCLOOCTADIENE, 1,5-COD, 1,5-CYCLOOCADIENE, 1,5-CYCLOOCTADIENE, 1,5-CYCLOOCTADIENE, (Z,Z)-, 1,5-CYCLOOCTADIENE, REDISTILLED, 99+%, 1,5-Cyclooctadiene (Z,Z), 1,5-Cyclooctadiene, (1Z,5Z)-, 1,5-Cyclooctadiene, stabilized, 97%, 1,5-Cyclooctanediene, 1,5-cyclooctodiene, 1-cis,5-cis-Cyclooctadiene, 1.5-CYCLOOCTADIENE, 1Z,5Z-Cyclooctadiene, 4-05-00-00403 (Beilstein Handbook Reference), CIS,CIS-1,5-CYCLOOCTADIENE, CIS,CIS-1,5-CYCLOOCTADIENE , STABILIZED WITH 50-200PPM IRGANOX 1076, CIS,CIS-CYCLOOCTA-1,5-DIENE

1,5-Cyclooctadiene (CAS 111-78-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H12 and a molecular weight of 108.181 g/mol. Key properties include a melting point of -69.5 °C, a boiling point of 151 ºC, a density of 0.882 and a flash point of 38 ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
111-78-4
Jingsj CID
J-26350-6
Molecular Formula
C8H12
Molecular Weight
108.181 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-69.5 °C
Boiling Point151 ºC
Density0.882
Flash Point38 ºC
Exact Mass108.093903
LogP3.67
Vapor Pressure4.3±0.1 mmHg at 25°C
Refractive Index1.474
Additional Property780 mg/L (20 ºC)

Frequently Asked Questions

What is the CAS number of 1,5-Cyclooctadiene?

The CAS number of 1,5-Cyclooctadiene is 111-78-4.

What are the molecular formula and molecular weight of 1,5-Cyclooctadiene?

1,5-Cyclooctadiene has molecular formula C8H12 and molecular weight 108.181 g/mol.

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

Last updated:

How to cite: Jingsj. "1,5-Cyclooctadiene (CAS 111-78-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26350-6 (accessed 2026-11-07).

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