gamma-Octadecalactone

Also known as: 5-tetradecyldihydrofuran-2(3H)-one, 5-tetradecyloxolan-2-one, 4-Octadecalactone, 4-Octadecanolide, Octadecan-4-olide, NSC 34907, γ-Stearolactone, 4-Hydroxyoctadecanoic acid gamma-lactone, 4-Hydroxystearic acid lactone

gamma-Octadecalactone (CAS 502-26-1) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C18H34O2 and a molecular weight of 282.461 g/mol. Key properties include a melting point of 50.1-50.3 °C, a boiling point of 375.2±10.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 157.4±16.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 502-26-1
Jingsj CID: J-1500680-0
Molecular Formula: C₁₈H₃₄O₂
Molecular Weight: 282.461 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	50.1-50.3 °C
Boiling Point	375.2±10.0 °C at 760 mmHg
Density	0.9±0.1 g/cm3
Flash Point	157.4±16.4 °C
Exact Mass	282.255890
PSA	26.30000
LogP	6.64
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.458

Customs & Trade Information

HS Code	2932209090
Summary	2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of gamma-Octadecalactone?

The CAS number of gamma-Octadecalactone is 502-26-1.

What are the molecular formula and molecular weight of gamma-Octadecalactone?

gamma-Octadecalactone has molecular formula C18H34O2 and molecular weight 282.461 g/mol.

What are the upstream and downstream products of gamma-Octadecalactone?

For gamma-Octadecalactone, Upstream Products: oleic acid, 1-Hexadecene, acetic acid; Downstream Products: Succinic acid.

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. "gamma-Octadecalactone (CAS 502-26-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1500680-0 (accessed 2026-11-06).

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