4-oxahomoadamantan-5-one

Also known as: 4-oxatricyclo[4.3.1.1~3,8~]undecan-5-one, 4-oxatricyclo[4.3.1.13,8]undecan-5-one, (1R,3R,6S,8S)-4-oxatricyclo[4.3.1.13,8]undecan-5-one, (1R,3r,8S)-4-oxatricyclo[4.3.1.13,8]undecan-5-one, 2-oxatricycloundecan-9-one

4-oxahomoadamantan-5-one (CAS 21898-84-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H14O2 and a molecular weight of 166.21700 g/mol. Key properties include a boiling point of 297.6ºC at 760 mmHg, a density of 1.148 g/cm3 and a flash point of 121ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 21898-84-0
Jingsj CID: J-1506666-7
Molecular Formula: C₁₀H₁₄O₂
Molecular Weight: 166.21700 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	297.6ºC at 760 mmHg
Density	1.148 g/cm3
Flash Point	121ºC
Exact Mass	166.09900
PSA	26.30000
LogP	1.73810
Vapor Pressure	0.00134mmHg at 25°C
Refractive Index	1.519

Frequently Asked Questions

What is the CAS number of 4-oxahomoadamantan-5-one?

The CAS number of 4-oxahomoadamantan-5-one is 21898-84-0.

What are the molecular formula and molecular weight of 4-oxahomoadamantan-5-one?

4-oxahomoadamantan-5-one has molecular formula C10H14O2 and molecular weight 166.21700 g/mol.

What are the upstream and downstream products of 4-oxahomoadamantan-5-one?

For 4-oxahomoadamantan-5-one, Downstream Products: 4-Hydroxy-2-adamantone.

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. "4-oxahomoadamantan-5-one (CAS 21898-84-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1506666-7 (accessed 2026-11-09).

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