cis-11-Eicosenoic acid

顺-11-二十碳烯酸

Also known as: Gondoic acid, (Z)-11-Eicosenoic acid, 11-cis-Eicosenoic acid, 11Z-Eicosenoic acid, cis-Δ11-Eicosenoic acid, C20:1 (cis-11) acid, Eicosenoic acid, MFCD00010506

cis-11-Eicosenoic acid (CAS 5561-99-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H38O2 and a molecular weight of 310.514 g/mol. It is also known as Gondoic acid, (Z)-11-Eicosenoic acid and 11-cis-Eicosenoic acid. Key properties include a melting point of 23-24 °C(lit.), a boiling point of 426.3±14.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 323.0±15.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5561-99-9
Jingsj CID
J-853598-8
Molecular Formula
C20H38O2
Chinese Name
顺-11-二十碳烯酸
Molecular Weight
310.514 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point23-24 °C(lit.)
Boiling Point426.3±14.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point323.0±15.2 °C

Frequently Asked Questions

What is the CAS number of cis-11-Eicosenoic acid?

The CAS number of cis-11-Eicosenoic acid is 5561-99-9.

What are the molecular formula and molecular weight of cis-11-Eicosenoic acid?

cis-11-Eicosenoic acid has molecular formula C20H38O2 and molecular weight 310.514 g/mol.

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

Last updated:

How to cite: Jingsj. "cis-11-Eicosenoic acid (CAS 5561-99-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-853598-8 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.