trans-Vaccenic acid

反式-11-十八烯酸

Also known as: (E)-11-octadecenoic acid, (E)-octadec-11-enoic acid, 11-trans-octadecenoic acid, Vaccenic acid, trans-11-octadecenoic acid, trans-11-oleic acid

trans-Vaccenic acid (CAS 693-72-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H34O2 and a molecular weight of 282.461 g/mol. It is also known as (E)-11-octadecenoic acid, (E)-octadec-11-enoic acid and 11-trans-octadecenoic acid. Key properties include a melting point of 44℃, a boiling point of 398.2±11.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 295.0±14.4 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
693-72-1
Jingsj CID
J-1957376-8
Molecular Formula
C18H34O2
Chinese Name
反式-11-十八烯酸
Molecular Weight
282.461 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point44℃
Boiling Point398.2±11.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point295.0±14.4 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of trans-Vaccenic acid?

The CAS number of trans-Vaccenic acid is 693-72-1.

What are the molecular formula and molecular weight of trans-Vaccenic acid?

trans-Vaccenic acid has molecular formula C18H34O2 and molecular weight 282.461 g/mol.

Is trans-Vaccenic acid hazardous?

trans-Vaccenic acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "trans-Vaccenic acid (CAS 693-72-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1957376-8 (accessed 2026-10-22).

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