1,5-Cyclooctanedione

Also known as: 1,5-Cyclooctanedione, Cyclooctane-1,5-dione, NSC 134499

1,5-Cyclooctanedione (CAS 1489-74-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H12O2 and a molecular weight of 140.18000 g/mol. Key properties include a boiling point of 260.7ºC at 760mmHg, a density of 1.038g/cm3 and a flash point of 96.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1489-74-3
Jingsj CID: J-1354306-1
Molecular Formula: C₈H₁₂O₂
Molecular Weight: 140.18000 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	260.7ºC at 760mmHg
Density	1.038g/cm3
Flash Point	96.3ºC
Exact Mass	140.08400
PSA	34.14000
LogP	1.47880
Vapor Pressure	0.012mmHg at 25°C
Refractive Index	1.462

Customs & Trade Information

HS Code	2914299000
Summary	2914299000. other cyclanic, cyclenic or cyclotherpenic ketones without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

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

The CAS number of 1,5-Cyclooctanedione is 1489-74-3.

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

1,5-Cyclooctanedione has molecular formula C8H12O2 and molecular weight 140.18000 g/mol.

What are the upstream and downstream products of 1,5-Cyclooctanedione?

For 1,5-Cyclooctanedione, Upstream Products: cis-1,5-Cyclooctanediol, 1,5-cyclooctadiene, Cyclooctanone; Downstream Products: δ-Nonalactone.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1,5-Cyclooctanedione (CAS 1489-74-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1354306-1 (accessed 2026-11-09).

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