3-Octadecanone

Also known as: octadecan-3-one, Ethyl pentadecyl ketone, Ethyl n-pentadecyl ketone, NISTC18261922, Einecs 242-132-3, Octadecane-3-one, Aethyl-n-pentadecyl-keton, Aethyl-pentadecyl-keton

3-Octadecanone (CAS 18261-92-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C18H36O and a molecular weight of 268.47800 g/mol. Key properties include a boiling point of 328ºC at 760mmHg, a density of 0.831g/cm3 and a flash point of 73.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 18261-92-2
Jingsj CID: J-1498473-7
Molecular Formula: C₁₈H₃₆O
Molecular Weight: 268.47800 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	328ºC at 760mmHg
Density	0.831g/cm3
Flash Point	73.2ºC
Exact Mass	268.27700
PSA	17.07000
LogP	6.44680
Vapor Pressure	0.000195mmHg at 25°C
Refractive Index	1.442

Customs & Trade Information

HS Code	2914190090
Summary	2914190090 other acyclic ketones without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-Octadecanone?

The CAS number of 3-Octadecanone is 18261-92-2.

What are the molecular formula and molecular weight of 3-Octadecanone?

3-Octadecanone has molecular formula C18H36O and molecular weight 268.47800 g/mol.

What are the upstream and downstream products of 3-Octadecanone?

For 3-Octadecanone, Upstream Products: 16-Bromo-1-hexadecanol, Palmitic acid, Iodoethane; Downstream Products: n-Octadecane.

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. "3-Octadecanone (CAS 18261-92-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1498473-7 (accessed 2026-11-09).

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