(9Z,11E)-9,11-Octadecadienoic acid
9(Z),11(E)-十八碳二烯酸
Also known as: Rumenic acid, Bovinic acid, 9-cis,11-trans-linoleic acid, cis-9,trans-11-conjugated linoleic acid, 9Z,11E-CLA, 9-cis,11-trans-octadecadienoic acid, 9Z,11E-octadecadienoic acid, 9,11-octadecadienoic acid, (9Z,11E)-, CLA 9c,11tr, trans-11-conjugated linoleic acid
(9Z,11E)-9,11-Octadecadienoic acid (CAS 2540-56-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H32O2 and a molecular weight of 280.445 g/mol. It is also known as Rumenic acid, Bovinic acid and 9-cis,11-trans-linoleic acid. Key properties include a boiling point of 381.6±11.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 278.5±14.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2540-56-9
- Jingsj CID
- J-1956405-0
- Molecular Formula
- C18H32O2
- Chinese Name
- 9(Z),11(E)-十八碳二烯酸
- Molecular Weight
- 280.445 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 381.6±11.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 278.5±14.4 °C |
Frequently Asked Questions
What is the CAS number of (9Z,11E)-9,11-Octadecadienoic acid?
The CAS number of (9Z,11E)-9,11-Octadecadienoic acid is 2540-56-9.
What are the molecular formula and molecular weight of (9Z,11E)-9,11-Octadecadienoic acid?
(9Z,11E)-9,11-Octadecadienoic acid has molecular formula C18H32O2 and molecular weight 280.445 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(9Z,11E)-9,11-Octadecadienoic acid (CAS 2540-56-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1956405-0 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.